If it     fine tomorrow，we     a picnic.

.------Why are you so upset?
------______I said,they didn’t believe me.

—I don’t know if she________to the party. If she________ she’ll call me.

There’s no doubt _______ Emily will be the hostess (女主持) of the New Year’s party.

While she  _______  , she  cut  herself.

 – When did you see Mr Green?
–             .

If it ________ rain tomorrow, we’ll go to the zoo.

．— I wonder if you _______ a picnic tomorrow.
— Yes. But if it ______, we’ll visit the museum instead.

I am not sure if Tom____ home. If he________,  I'll call you.

-- Hello, this is Jack. May I speak to Tom?
-- Sorry, he isn’t in at the moment. If he _______ back, I’ll ask him to call you back.