13. Every time the father comes into his room, the boy pretends ______ earnestly.
| A．reading | B．to be reading | C．to be read | D．to have read |
—What about going swimming on such a hot day?
—________.
| A．It must be funny | B．That's right |
| C．Have a nice time | D．Sounds great |
---Do you mind if I smoke?
---______.
A． I’d rather you not to |
B．I’d rather not |
| C．I’d rather you didn’t | D．I’d prefer not to |
Mark Twain worked for several years as a pilot on a steamboat, taking passengers up and
down the Mississippi, the great river ___flows from the north of the US near the Canadianborder.
| A．as | B．what | C．which | D．who |
Don’t ___a story. What I want to know is the whole truth about this matter.
| A．take up | B．give up | C．make up | D．pick up |
Do you wake up every morning ____energetic and ready to study English well?
| A．feel | B．to feel | C．feeling | D．felt |