--- Mary knows so much about ______earth!
---Yes, although she is only ____eight- year-old girl.
| A．an; a | B．the; an | C．the; a | D．an; an |
— Could you tell me ______?— Certainly. In half an hour.
| A．when will the high speed train arrive |
| B．when the high speed train will arrive |
| C．when does the high speed train arrive |
| D．when the high speed train arrive |
If you don’t know the words, you must ______in a dictionary.
| A．look it up | B．look up it |
| C．look them up | D．look up them |
—There was thick haze（雾霾）in our city this spring. What do you think of it？
—I think __ cars we drive, __ pollution our city will have.
| A．the fewer; the fewer | B．the fewer; the less |
| C．the more; the fewer | D．the more; the less |
— ____ does he learn English? —He learns ____ watching English movies.
| A．How, by | B．What, by |
| C．How, from | D．What, from |
— Jim, remember to return this book by Friday.
— ________.
| A．Got it | B．Good luck |
| C．That’s right | D．It’s nothing |