问题

Sam is doing some ______ about the ancient Silk Road.

A:exercise
B:operations
C:research
D:experiments;

正确答案是：

同类题型

Do you want something to drink — Yes. , please.

It’s cool to have an iphone 6, but I think it costs_______.

Is the bus stop far from here? —— It’s a quarter’s walk, ＿＿＿＿＿＿＿＿

下列句式不同于其它三项的一项是( )

Jack took the8:30 bus to Guangzhou this morning—Really He ______ 8:20 Express It is much more comfortable andfaster to travel by train