问题
While Helen __________ the guitar, her mother came in.
A:was playing
B:is playing
C:played
D:plays
B:is playing
C:played
D:plays
正确答案是:
同类题型
We were swimming in the lake _____ suddenly the storm started.
Is your father a doctor in No.2 Hospital?—No, he ___________ a farmer and now he is a driver.
Do you know the kid with _______Bob is talking over there?—Yes, it’s my cousin.
Have you _______ some new ideas?- Yeah. I’ll tell you later.
To save water, the parents told their children ________ their teeth under a running tap.