—Has Tom finished his experiment today? —No idea. He________it this morning.

admin2018-08-10  59

问题 —Has Tom finished his experiment today?
—No idea. He________it this morning.

选项 A、is doing
B、was doing
C、had done
D、has done

答案B

解析 句意:——汤姆今天完成实验了吗?——不知道,他今天上午一直在做。本题考查的是时态的用法。根据题意,题目表达的是Tom今天上午一直在做,需用过去进行时,故B正确。
转载请注明原文地址:https://jikaoti.com/ti/69VsFFFM
0

随机试题
最新回复(0)