---_______ do they go to school ? ---At 6 o’clock .A. When B. What C. Where
He spends as much time as he can ___________ English every day
---I don’t know if his uncle _______. ---I think he ________if it doesn’t rain.
The Yellow River is the second ___________river in China .
–Can I get you a cup of tea? ---______________
His grandfather is over 85, _________ he is very healthy.