Supply the correct verb tense

Exercise II : Supply the correct verb tense.

    1/ If you are kind to me, I (be) __ good to you.
    2/ He (come) __ if you waited.
    3/ If you (ring) __  the bell, the servant would come.
    4/ If I had known that the baby was hungry, I (feed) __  him.
    5/ If it (not, rain) __ a lot, the rice crop wouln’t grow.
    6/ If today (be) __  Sunday, we wouldn’t have to work.
    7/ If she had had your address, she (write) __  to you.
    8/ We lost the match. If you (play) __ for us, we (win) __.
    9/ So long as you return the book by Saturday, I (lend) __  it to you with pleasure.
    10/ They would not be paid unless they (do) __ their work well.
    11/ Provided he (not, be) __  interrupted, he can finish the work on time.
    12/ If it (be) __  convenient, let’s meet at three o’clock.
    13/ If I became very rich, I (build ) __  a hospital for  the poor.
    14/ If he (give) __ up smoking, as his doctor orders, he will be soon well again.
    15/ He (not, have) __ an accident if he had not been driving so fast.
    16/ If she (write) __  more carefully, she might not have made too many mistakes.
    17/ You would have to stay in bed unless your health (improve) __.
    18/ Did she have more practice, she (speak) __ English better.
    19/ Had I known that she was sick, I (visit) __  her.
    20/ Supposing World War III (happen) __ human civilization (be) ___ destroyed.