问题

When I approached to the subway entrance, an explosion occurredThis ___my first experience, I got into panic

A:was
B:is
C:being
D:been

正确答案是：

同类题型

Your jacket looks so cool. It must be very expensive.— Not really. I only __________ ￥150 on it.

If I had a million dollars, I’d give it away to___/′medikl/ research.

____—When she was seventeen.

─Shall we go shopping together this afternoon ─ ____ .My mother will take me to see my grandparents.

Do you needthe dictionary too— ________