We were listening closely to the lecture yesterday evening when suddenly the light _______.

He was very busy yesterday, otherwise he ____ to the meeting.

—An ant has two stomachs—one for itself, one for others. —Really? Quite interesting. I ________ anything about it. 

—Haven't I told you that you should be home earlier?—Yes, but I________home earlier than I usually do. 

-----I wonder if you could go with me to the supermarket. ------- Don’t disturb me. I _____________my experiment report all the morning and haven’t finished yet.

The Internet connection for the entire area _________ when there was a sudden power cut yesterday.

---- Flight 551 for Dallas ________. I must be off now. ------Have a pleasant trip then.

If they ______ what I was saying, they’d know what I was talking about.

With more forests being destroyed, huge quantities of good earth      each year.

— Have you watched the film “Avatar”? — Not yet. But I       the film is worth watching. 

Tom is the only one of the students who     a scholarship since last year. 

Professor Smith, along with his assistants, _________on the project day and night to meet the deadline.

They ________ to enter the building by the back door; however, the front door was locked.

It is said that the early European playing-cards ______ for entertainment and education.

I suppose by the time I come back next year, all these old houses south of the Baoshehe River ________ down.

 —Tom, it seems that you haven’t cleaned your bedroom the whole week .—You didn’t come in around 10 yesterday morning; I ________ it .

 Every necessary means____ to protect milu deer which____ very valuable to us. As a result, the number of milu deer is increasing.

—Bob! How is your project? I heard you started it last Friday, right?—Oh! I_______ for it. But I haven’t decided when to do it.

 --- Is it convenient to you if I call you up at 9 o’clock tomorrow morning? --- I’m afraid not. I _________ a speech then.

He insisted that he ________ the bike and therefore __________.