The possibility____ pleasant smells might reduce pain has recently been suggested by new research.
| A．which | B．why | C．that | D．whether |
His doctor suggested he ___ smoke because of his illness.
| A．wouldn’t | B．didn't | C．wasn’t | D．not |
---It’s a wonderful party.—It’s very nice of you to come.___.
| A．Please do make yourself at home | B．Please enjoy yourself |
| C．Help yourself | D．Have a good time |
He ___ at the enemy, without saying a word.
| A．shouted | B．stared | C．called | D．arrived |
She didn't answer the phone.She ___ be asleep.
| A．couldn't | B．mustn’t | C．might | D．had to |
___ people gather there, talking about the film about Comrade Lei Feng.
| A．A great deal of | B．The large amount of | C．The number of | D．A great many |