It is suggested that the key _______ the world's environment should be _______ a low carbon economy right now.
| A．to protect; to expand |
| B．to protecting; to expand |
| C．of protecting; expanding |
| D．to protect; expanding |
As I don’t know _____ to take up Miss Rose’s course because of her wedding leave, I have to ask her students about it .
| A．how | B．what | C．where | D．whether |
He hasn’t got any hobbies---_______ you call watching TV a hobby.
| A．If | B．Unless | C．When | D．Since |
The English ______ in England between AD450 and 1150 was very different from the English we _______ at present.
| A．speaking；spoken | B．spoken； speak |
| C．spoken；speaking | D．speaking； are speaking |
_______ young girl reminded me of my youth gone. I’m now ______ has-been that can tell what to do or not to do.
| A．The;a | B．A; the | C．A; a | D．The;不填 |
---My name is Jonathan. Shall I spell it for you?
---_____________.
| A．No problem. | B．Of course, you should. |
| C． If you don’t mind | D．That’s all right. |