13. His ability is beyond question; _____ has been in doubt is ____ he is prepared to work hard
| A．what; that | B．which; whether | C．what; whether | D．that; that |
Tell me how you work out the answer, _______ you?
| A．can | B．will | C．don’t | D．shan’t |
“ Need he go?” “ Yes, he ______.”
| A．need | B．can | C．may | D．must |
“ Isn’t that Tom playing basketball?” “ It ______ be; he fell off the ladder yesterday and got badly hurt.”
| A．mustn’t | B．would rather not | C．couldn’t | D．wouldn’t |
“________ I have a glass of beer?” “ No, I’m afraid you ________.”
| A．Can’t; can’t | B．Could; won’t | C．May; daren’t | D．Shall; may |
“ They went to the lecture, but it had been put off.” “ Oh, so they _______.”
| A．needn’t have gone | B．should have gone |
| C．mustn’t have gone | D．don’t need to go |