一、单项填空
1. The Blacks with us for the time being.
A. will stay B. would stay C. have been staying D. will be staying
2. The plane at the present speed until it crosses the mountain at about ten tonight.
A. would go B. went C. will be going D. goes
3. Mr. Smith will not be able to attend the meeting tonight because ______ then.
A. he must have a class B. he will be teaching a class
C. he teaches a class D. he will have been teaching a class