----Can you tell me ______ live a low-carbon(低碳) life ?
----OK. By using both sides of the paper.
| A．where’s | B．why to | C．when to | D．how to |
I can’t understand ____________ the boy alone.
| A．why did she leave | B．why had she left | C．why she left | D．why she had left |
They asked many questions ___________ had nothing to do with that topic.
| A．which | B．who | C．where | D．when |
_____________ is necessary __________ he trains himself before the Guangzhou Marathon.
| A．This, 不填 | B．The, 不填 | C．It, that | D．This, that |
___________ a sportsman is a hard job, but you are very excited if you are successful in ____________a good medal.
| A．To be, get | B．Being, getting | C．Being, to get | D．To be, to get |
---Which do you like ___________ , apples or pears?
--- I like pears.
| A．best | B．good | C．well | D．better |