---I feel really tired.---___________________A. Lucky you! C. You’d better work harder.C. Congratulation! D. Why not go and have a rest?
—Can I _______ a book from you? —Certainly. But you mustn’t ______ it to others. And please remember you can only ______ it for a week.
Mary didn’t know who _______ the problem she met with at that time.
—_______ I wash the clothes now? —No, you _______. You _______ clean the room first.
—Mum, can I help you with the cleaning? —Thank you, dear. But you are ______ now. You must wait till you are _______.
I can’t remember when exactly the Robinsons left _______ city. I only remember it was _______ Sunday.