问题

________ do you update your micro blog (微博) —Twice a week.

A: Howlong
B: Howoften
C:How manytimes
D: How soon

正确答案是：

同类题型

If you_____this experiment you willunderstand the theory better.

Where would you like to go on vacation, Sam—_________.

下列成语使用不正确的一项是（）

Please call my secretary to arrange a meeting this afternoon，or________it is convenient to you

It wasn’t until nearly a month later _______ I received the manager’s reply. [ ]