People working 10 or 11 hours a day are more likely to suffer from health problems than _____who go off duty after eight hours.
| A．those | B．that | C．these | D．them |
Don’t forget: it’ll be the first time ___ in public.
| A．I’ve spoken | B．Ishall speak | C．I’ll speak | D．I speak |
There’re few pieces of electronic equipment ____to raise fears regarding future employment.
| A．likely | B．more likely | C．possibly | D．more possibly |
I promise that she ___ get a nice present on her birthday.
| A．should | B．must | C．would | D．shall |
He ___ without saying good-bye to them, for he always has good manners.
| A．mustn’t have left | B．may not have left | C．shouldn’t have left | D．can’t have left |
. He was not brave. He ____ jump down from the roof.
| A．dare not | B．dared not | C．dares not | D．dare not to |