Question

—How was your trip in the mountains last weekend?

—Fantastic. We even         a tent by the lake and lay in it.

A.put on

B.put off

C.put down

D.put up

Answer

D

【解析】

句意：——你上周末的登山之旅怎么样？——很奇妙。我们甚至在湖边搭了个帐篷，躺在里面。
考查动词短语。put on穿上；put off推迟；put down放下；put up搭建。根据空后“a tent by the lake and lay in it”可知此处是说搭建了帐篷，用put up符合题意。故选D。