问题

We must keep our room clean. Dirt and disease go ____________, you know.
A:from time to time
B:hand in hand
C:step by step
D:one after another
B:hand in hand
C:step by step
D:one after another
正确答案是:
同类题型
I do not doubt ________ win in the race.
1— Who’s that lovely girl?— You mean______ girl with long hair? That’s Kate.
She thought _______impossible to finish somuch work in a day.
The flowers were so lovely that they ______ in no time
He made another wonderful discovery, ______ of great importance to science