_______________many children like sugar, I think they had better try not to eat it too often.

---Would you like to go to the amusement park?--- If Jim does, _____.

A: __________ do you use your computer?B: I use it in the evening.

－When did your father come back last night?－He didn’t come back_________ he finished all the work.

 _____ she is only 4 years old, ______ she can plays the piano.