—He should have come to join in the thorough cleaning. —He ________, I think. It's not his turn. 

 Look at the clock! It's time ______ work.

---- Did you visit the Big Ben in London?---- No, we ______ it, but we spent too much time shopping.

Were it not for the debt, we ______a happy life:

You look smart in this new jacket. That old one ______ thrown away many years ago.

You ___ go to the shop.There are quite a few eggs in the fridge.

If you don’t like to swim，you _____ as well stay at home．

Jenny ____ have kept her word.I wondered why she changed her mind.

There is no light in the room.They ____asleep.

---I feel the house shaking.----So do I .It ___ be sign of an earthquake most probably. Let’s hurry to leave here.

---What can I do for you? ----- If you _____ see Mr. Smith, give him my regards.

---John, how did your English exam go? -----I thought I ____,but in fact I came in the top 10% in the class.

It has been announces that all takers ____ remain in their seats until all the exam papers have been collected.

 — Would you please go to the cinema with me ? — Yes , I ____ . 

The fire spread through the hotel very quickly but everyone ____ get out . 

It''s nearly seven o''clock . Jack ____ be here at any moment .

— Could I borrow your dictionary ? — Yes , of course you ____ . 

Since you have such good preparations, there  ____ be any problem about passing the coming job interview.

----Was he present a the meeting?---- He ____ not have attended it, for he was busy repairing his computer all the time.

---- Isn’t amazing that such a good player ____ have failed to be elected to compete?----Yes, but that is life.