Rates of work are calculated on a weekly ________．

A．basis

B．basin

C．bases

D．bath

We should take the influence of the climate ________ agricultural production into account．

A．on

B．by

C．in

D．wish

It________, but nobody answered the phone．

A．finished

B．went through

C．passed

D．got through

In the days ________, he was still in low spirits, and it seemed hard for him to get over it．

A．following

B．followed

C．that followed

D．to follow

When I entered the room, I saw a stranger ________ in my place．

A．seated

B．seat

C．seating

D．be seated

I suggested that he ________ a good idea．

A．has

B．had

C．have

D．should have

The old man ________ sit like that for hours, and now he is still used to sitting like that．

A．had to

B．was to

C．used to

D．would

The flight to Beijing was canceled ________ the heavy snow．

A．as

B．for that

C．because

D．because of

________ time, she'll make an excellent dancer．

A．Having given

B．to give

C．Giving

D．Given

Do you think it is going to rain heavily tomorrow?________．

A．I believe not

B．I don't believe it

C．I don't believe

D．I believe not so