1.As a child I used to wash my parents’ car to earn some         money.

A.paper

B.easy

C.private

D.pocket

解析：pocket money意为“零花钱”，paper money 纸币；easy 容易的；priatve 私人的。

2.After the busy day I’ve had, I need a         drink.

A.heavy

B.sharp

C.strong

D.powerful

答案：A

解析：忙碌完一天，我喝点烈酒。strong(饮料）浓的，烈性的，strong drink意思为烈性酒，符合题意。

3.Is this the factory         you visited the other day?

A.what

B.where

C.that

D.when

解析：That引导为定语从句，修饰先行词the factory，而且在从句中充当宾语，符合句意。

4.-How much did this set of furniture cost?

-I forgot        .

A.how much it costs

B.how much did it cost

C.how much it cost

D.how much does it cost

解析：forgot后为宾语从句，宾语从句用陈述句语序，由forgot可知，宾语从句谓语动词应为过去形式，故选C。

5.We had a long way to go so we decided to         early.

A.set on

B.put on

C.set off

D.put off

解析：set off出发，起身。