Don’t _______(卷入) me in solving the troublesome situation.

―Do you mind if Jim will come to help?
    ― I really don’t know ______ a person like him can help me with.
A. what           B that
C. how            D. if

While watching television, ________.

　 A. the doorbell rang　　　　　　　　　　　 B. the doorbell rings

　 C. we heard the doorbell ring　　　　　　　 D. we heard the doorbell rings

If you really want yourself to be in good health, you must_______ always _________ so much.

A. not, be smoking　 B. not, have smoked　　 C. not, to smoke　 　D. be not, smoking

The main meal of the day, eaten in the middle of the day or the evening is called ____.

　 A. meal　　　 B. dinner　　　 C. breakfast　　　 D. supper

The professor gave orders that the test _______ before 10:30.

A. will finish 　 　 B. will be finished

C. be finished 　 　 D. shall finish

Mr Emanuel, who ________ forty?nine this month, used to serve in the White House.

A．gets　　　　　　B．goes　　　　　　C．becomes　　　　　D．turns