问题

you ever aboard — Yes, but only once.

A: Do ,travel
B:Have traveled
C:Did travel
D: id travel D Were traveling;

正确答案是：

同类题型

Roast duck is one of _______ dishes in Beijing.

The farmer was very thankful to the doctor ______ treated his son.

How many are there in your classroom- There are twenty.

下列各句中，表达得体的一句是（）

It was reported that two roads being closed in Teesdale _____icy road conditions.