－I rang you at about ten o’clock, but there was no reply．

－Oh, that was probably _________ I was seeing the doctor．

when

why

what

that

－Can you tell me _________?

－An engineer from Jinan Iron and Steel Plants．

what your friend is

who your friend is

what is your friend

who is your friend

－_________ that made Mrs．White so upset?

－Her son’s making trouble in the school．

Where was it

Why was it

How was it

What was it

－Tom is very upset．I wish I _________ him the disappointing news．

－I told you not to, but you wouldn't listen．

didn't tell

hadn't told

haven't told

wouldn't tell

－I like your new shoes!

－Thanks．I had to try on almost a dozen pairs _________ I decided to get them．

as

when

after

before

－Sunny had to give a speech in front of 500 people yesterday．

－Whew! That's a big audience．She _________ have been nervous．

must

would

might

could

－The constant noise around here _________ me crazy!

－Calm down．It's no use complaining．

drove

drives

is driving

had driven

－Hurry up! There's a bus coming!

－Why run? There will be _________ one in two or three minutes．

another

other

the other

any other

－Alice，why didn’t you do it the day before?

－I _________, but I had an unexpected visitor．

had

would

was going to

does

－Mum, I can’t see any point in studying hard．

－Come on, dear．Years of hard study will surely _________ in your future career．

make sure

pay off

bring back

pay back