问题
选择题
While the alien _______ a souvenir, the girl called the police.
A.was buying
B.bought
C.buys
D.is buying
答案
答案:A
考查点:动词时态。解题思路:while一般情况下引导过去进行时。
While the alien _______ a souvenir, the girl called the police.
A.was buying
B.bought
C.buys
D.is buying
答案:A
考查点:动词时态。解题思路:while一般情况下引导过去进行时。