Every morning I wake up after my alarm clock ____ at six.

I will come to attend your lecture at 10:00 tomorrow.— I’m sorry, by then my lecture will have ended and I _____ in my office

Such good use had been his spare time_________ his English has improved a lot．

.—-Look! Our Chinese teacher, Mr Zhang, is playing badminton there.—-No, it ________ be Mr Zhang,. He has gone to Guangzhou for a meeting.

You’d better not speak of it at the beginning of the story, ________ it may give away the surprisingending[ ]