问题

Were you at Mary’s party last night—No, I ____________ my sister. She met with difficult problems.

A:help
B:am helping
C:have helped
D:was helping;

正确答案是：

同类题型

He could do nothing except __________ TV.

Here ______ two _______ of white socks for your son.

If you himthe truth, you’ll prove how honest you are.

This book is said to be special which ____ many events not found in other history books.[ ]

______ my little brother is achild , he knows a lot.