If it ______ rain tomorrow, we’ll go hiking.

             A. won’t     B. doesn’t     C. don’t     D. didn’t

—Alan! Why are you so late?

—Sorry! When I _______ home, I met one of my old friends.

A. went B. am walking

C. has gone D. was walking

I will do some cleaning as soon as I ______ my homework.

A. finish B. will finish

C. have finished D. finished

We ______ for a picnic if it ______ rain this Sunday.

A. go; doesn’t B. will go; won’t

C. will go; doesn’t D. go; won’t

—Swimming in the river for teenagers is very dangerous.

—So it is. If I ______ them, I ______ a shower at home.

A. am; would take                 B. were; will take

C. was; would take                 D. were; would take

—Excuse me, could you please tell me if the sports meeting _______ on time?

—Hard to say. If it _______ tomorrow, we’ll have to put it off.

A. will hold; rains B. will be held; rains

C. will be held; will rain D. holds; will rain

—I want to know if Maria ______ us in the fashion show tonight.

—I believe if she ______ her homework, she will join us.

A. joins; finishes B. will join; finishes

C. joins; will finish D. will join; will join

Eating and drinking on Beijing subway is not allowed. If you ______ the rule, you’ll

face a fine (罚款) of up to 500 yuan.

A. broke       B. break   C. will break  D. have broken

If I make a lot of money I ______ give some to medical research or charities.

A. am going to B. can C. will D. should

If we ______ take environmental problems seriously, the earth _______ worse

and worse.

A. don’t; will be B. won’t; isn’t

C. won’t; is D. don’t; won’t be