His aunt’s letters him of those beautiful days when they used to live together in his hometown.
| A．call up | B．call for | C．call on | D．call at |
He is ill, and he has ___ in bed for a week.
| A．lay | B．lied | C．laid | D．lain |
We’ve made up our mind to finish this experiment no matter ___ difficult it was.
| A．what | B．when | C．how | D．how much |
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 |