The little girl kept _____ the house, because she wanted to keep it _____.
A. cleaning; clean B. cleaning; cleaning
C. clean; clean D. clean; cleaning
___________ the three questions, which one is the most difficult to answer?
A. As B. In C. Than D. Of
The Yellow River is __________ river in China.
A. the longer B. the longest C. the second longest D. longest
The students come to school early, but the teachers come __________.
A. much earlier B. much early C. more earlier D. the earliest
--We spent all our money because we stayed at the most expensive hotel in town.
--Why didn’t you stay at _________ one?
A. a cheap B. a cheaper C. the cheap D. the cheaper
He always looks _______. Now he’s looking ________at his new drawing.
A. happy, happily B. happy, happy
C. happily, happily D. happily, happy
