---Are you sure you have to do it? It’s been very late.
-----I don’t know ________I can do it if not now.
A .where B. why C. when
Mr. Green ______for America the day after tomorrow.
| A．left | B．leaves |
| C．is leaving | D．is going to leaving |
--- _____________ ? – I have a sore back.
| A．What’s the wrong | B．What’s matter |
| C．What’s trouble | D．What’s wrong |
_____is important for us _______sports every day
| A．It； do | B．That； to do |
| C．This； to do | D．It； to do. |
--______ does your father do morning exercises?—Hardly ever.
| A．How | B．How often | C．When | D．What time |
Do you enjoy___ in China?
| A．live | B．to live | C．living | D．lives |