. --- Do you have any trouble explaining
题型:选择题
问题:
. --- Do you have any trouble explaining the sentence? ---No, _____
A.nothing at all
B.a little
C.none at all
D.not at all
. --- Do you have any trouble explaining the sentence? ---No, _____
A.nothing at all
B.a little
C.none at all
D.not at all