I used to feel very nervous when I stood up in front of others, but now I feel quite ______when giving a speech to the school．

A．at random   B．at length        C．at ease           D．at sight

For a long time, he hesitated whether he should tell us ____ what had happened．

 After a long journey they arrived ______ in Naples, where they stopped to trade with the local people.

Two parachutists（伞兵）had been flown behind enemy lines early in the morning．They were   1    to gain as much information as possible on a new experimental factory．

The two men destroyed their   2   and they dressed as laborers to avoid being easily     3   . Soon they reached a road．At the roadside, they noticed a deep pit（坑）where rainwater had     4   , with some tools, and a broken-down lorry nearby. The men were making their way   5       towards the lorry when the sound of a truck in the distance made them dash for   6   . At that moment, they had no choice but to jump into the pit, as the countryside was so   7   . There was a great splash（飞溅声）, and very soon all was  8   . The water was quite shallow, and the men had to   9  themselves against the sides of the pit wondering if they had attracted the attention of the lorry driver．They   10   anxiously as the truck came nearer and nearer, and hoped it would   11   . But, much to their disappointment, the truck seemed to stop almost directly   12    them. They heard voices and the truck door shut loudly overhead. From their discussion, they   13   that some men in the truck had come to collect the   14   . Suddenly, the men were startled（惊吓）by a piece of wood which was   15   into the pit and which struck the water just behind them．They could do nothing but   16   their breath and wondered what would happen next．Then the sound of the engine started up again, setting them   17   , for they knew as the men were leaving, they had narrowly   18    being captured. But very soon, their joy quickly turned to   19   , because when they looked up, they found that the pit was much    20    than they had thought. Its sides were wet and slippery and there was no way out.

1．A．warned                    B．instructed                C．advised            D．allowed

2．A．parachutes           B．planes               C．papers       D．certificates

3．A．shot                         B．spotted                   C．killed               D．kidnapped （绑架）

4．A．dropped                    B．risen                       C．sunk              D．collected

5．A．carefully                   B．impatiently              C．anxiously         D．hopefully

6．A．water                       B．cover                      C．pleasure           D．rest

7．A．bare                 B．poor             C．dry          D．dangerous

8．A．noisy                        B．still                         C．silent               D．calm

9．A．struggle                   B．push                     C．press             D．find

10．A．listened                B．watched                  C．stood            D．wondered

11．A．stop                        B．pass                       C．explode            D．speed

12．A．near                       B．below                     C．above              D．behind

13．A．understood              B．recognized              C．admitted          D．remembered

14．A．wood               B．sticks                      C．weapons         D．tools

15．A．thrown                   B．poured                    C．filled                D．laid

16．A．take               B．hold                        C．save                D．lose

17．A．at ease （放松）                                       B．at length（长时间地）

C．at leisure （悠闲）                                    D．at work

18．A．kept                       B．escaped                  C．admitted          D．prevented

19．A．expectation          B．anger                      C．regret                     D．sorrow

20．A．wider                            B．bigger                     C．deeper             D．narrower