问题

Leaves fall _______piles ________the ground
A:am taking
B:was taking
C:took
D:will take;
B:was taking
C:took
D:will take;
正确答案是:
同类题型
Whenever it is, it is right for a student to ______ the school disciplines.
David, are you 1istening to me?–Sorry, DadI _______ to make sense of what the reporter said
When is the Spring Festival(春节) this year—It’s in ________, the second month of the year.
If I have a short-wave radio, I can often __________ the BBC programmes.
The bell ______ the end of the period rang, ______ ourheated discussion.