It’s nice ___________ the doctor to devote all the time he has _______ for the patients.
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.