Simon, don’t give up easily. It’s ______________ to lose the chance. –Thanks. Your suggestions are ___________.
You may go fishing if your work _______.
Sally sings pretty _______ and she is also _______ at dancing.
Listen! Is that Millie singing?—No. It _____ be Millie. She has gone to Beijing.
I don’t know if it _________ tomorrow. We won’t go shopping if it ____________.