.Complete the sentences with the correct verb form in the bracket.
1.    Ifs omeone offered to buy you one ofthose rings, which you (choose)            ?
2.    The flight may be cancelled if the fog (get)            thick.
3.    If the milkman (come)            , tell him to leave two pints.
4.    I (call)             the office if I were you.
5.    Someone (sit)            on your glasses if you leave them there.
6.    You would hear my explanation if you (not talk)            so much.
7.    What you (do)             if you hear the burglar alarm?
8.    If you (read)            the instructions carefully, you wouldn’t haveanswered the wrong question.
9.    If Mel (ask)            her teacher, he’d have answered her questions.
10.    I would repair the roof myself if I (have)        a long ladder.
11.    Unless they turn that radio off,I (go)            mad.
12.    If you were made redundant, what you (do)            ?
13.    We’ll have a long way to walk if we (run)            out of petrol here.
14.    If you shake that bottle of port, it (not be)             fit to drink.
15.    If you spoke louder, your classmates (understand)             you.
16.    I’ll probably get lost unless he (come)             with me.
17.    You (not have)            so many accidents if you drove more slowly.
18.    If you (wear)            a false beard, nobody would have recognized you.
19.    If she (leave)            the fish here, the cat will eat it
20.    You (have)            no trouble at school if you had done your homework.