Question

改错。下面句中有一处错误，把错误的一项选出来并加以改正。

－How long	have	you	been	to	China?
	A		B	C
－For	more than	two years.
	D

Answer 1

答案：C
解析：

to→in

提示：

have been to意为“去过”，不与how long连用。