问题
Who helped Mum wash the dishes yesterday? —Helen ______.
A:does
B:do
C:did
D:was
B:do
C:did
D:was
正确答案是：
同类题型
This story is well worth ____________.
________full use of the chance, or you will never achieve your dream of overseas study.
When will he leave for Shanghai?—As soon as he _ his work.
Who can tell me_______? —Every 15 minutes.
The weather in Yang Zhou is much colder than ______ in Hainan in winter.