问题

I _ my pen when I _____ in the park.

A:lost; was walking
B:lost; walked
C:was losting; was walking
D:was losting; walked

正确答案是：

标签： lost , losting , was

同类题型

I don’t think you will have any difficulty ______ a driving licence.

Tom, there is________on TV tonight, let’s read books instead.

The accident happened_____ a cold wet morning.[ ]

The other day, as I was walking _____ town , I saw a strange sight.

下列表示重量单位的是______.