There is no doubt that students ________in their study if they       more praise from their teachers.

If it_________ tomorrow, I’ll go birdwatching with my father. -----That’s a good idea.

—Where were you at ten o’clock this morning?—I ________ with my friends in the park at that time.

The presentation of the Film Festival will be covered live tonight. It’s worth ________.

The boy _______ that the duck _______ two eggs yesterday.