题目内容

I haven't met him for ages, but his mother ______ him every day.

A. had seen
B. sees
C. has seen
D. saw

查看答案

搜索结果不匹配？点我反馈

更多问题

The city ______ great changes in the past five years.

A. sees
B. has seen
C. saw
D. had seen

It is not long before the water ________cold.

A. is feeling
B. felt
C. was feeling
D. feels

有无穷多个向量组成的集合称为为向量空间。

A. 对
B. 错

v满足向量线性运算的全部8条运算规律则可以自成一个向量空间。

A. 对
B. 错