Tyron was very angry，but cool­headed enough to _____ rushing into the boss's office.

A．prevent     B．avoid    C．protect    D．allow

 He has been training for a long time, so he is _______ to succeed at his first ________.

A．possible；attempt                         B．probable；try

C．likely；attempt                             D．perhaps；try

          days went by, he didn’t succeed in anything he had planned.

        A. With          B. When       C. As           D. While

 She felt         about her future.

A. puzzle         B. puzzling     C. puzzled        D. puzzles

 “We can’t go out in this weather, ” said Bob,______ out of the window. 

A. looking        B. to look      C. looked         D. having looked

 Listen! Do you hear someone ________ for help?

          A. call           B. calling        C. to call        D. called

 Li Ming speaks English very well________ he were an English boy.

A. so that            B. even if      C. now that     D. as though

 I can make you ________ what I say, but you can’t make yourself ________ in English.

A．understand；understand      B．understand；understood

C．to understand；understand    D．understand；to be understood

 I lived at a time _______ there was no TV, radio or cinema.

       A. where              B.    which            C. when                  D. that

 —May I smoke here?

—If you _______ , choose a seat in the smoking section.

A. must                   B. should               C. may                  D. can