问题

I have never been to the Great wall. —If you have an opportunity _______ there, you must take it.

A:to go
B:to going
C:going
D:go ;

正确答案是：

同类题型

You look so young in red. — __________.

have started getting up at 5:30 a.m. to study;I don’t know if I can this.

This machine, ______for many years, is still working perfectly.

My father was reading a newspaper ___ my mother was cooking dinner.

_______ can I keep the books—Two weeks.