When the man came in, gun in hand, we all stood there, ________．

astonished

astonishing

being astonished

having astonished

Ms Jones ________ her stepmother travels once or twice every other year．

and

besides

as well as

and along with

It really seemed ages ________ the police came on the scene and cleared away the damaged cars．

before

after

when

as

QQ, ________ you can chat with your friends, makes communication easy．

how

where

that

which

Lady Gaga has put off her concerts because of the difficulties ________ by the ongoing strikes．

causing

to cause

to be caused

caused

________ he driven more carefully, the accident would not have happened the other day．

Be

Had

Has

Would have

It was ________ that saw a lot of close matches in the 16^th Asian Games in November, 2010．

Guangzhou

located in Guangzhou

in the city of Guangzhou

held in Guangzhou

I think you should complain－________, of course, you are happy with the way things are．

if

unless

as

because

When I finally got up to leave, we both knew that a real friendship ________ between us．

have formed

will form

is to form

was to form

John didn't choose ________ of the ties and went away without looking at a third one．

many

either

all

any