It was only after World War II had drawn to a close ______ in the United States.
| A．did the baby boom begin | B．that the baby boom began |
| C．when the baby boom began | D．then the baby boom began |
My friend was down with the flu, and ________ couldn’t come to the party.
| A．instead | B．however |
| C．therefore | D．otherwise |
To my satisfaction, my son is ________as my daughter.
| A．as good an English learner |
| B．as a good English learner |
| C．so good an English learner |
| D．an as good English learner |
--Miss Smith is waiting outside. ________ she come in to see you, sir?
---Yes, please show her in. I have got something important to tell her.
| A．Shall | B．Will | C．Would | D．Must |
-- How about dinner tonight? It's on me.
-- .
| A．You're welcome | B．I'd like to. |
| C．Well, I'm afraid so. | D．That's all right. |
We were very excited to watch the national flag in the blue sky.
| A．risen | B．raise |
| C．to raise | D．rising |