1、判断题：
Have you gone to America before? （ ）
选项：
A:错
B:对
答案: 【错】

2、判断题：
Let's air the room before he comes home. （ ）
选项：
A:对
B:错
答案: 【对】

3、单选题：
However __________ were Marvin Gaye's beginnings as a member of his father's church choir, he became a famous and esteemed performer.（ ）。
选项：
A:inspiring
B:powerful
C:popular
D:modest
答案: 【modest】

4、单选题：
Current software or engineering managers cannot afford to __________behind new technical developments before finding themselves hopelessly outdated.（ ）。
选项：
A:linger
B:retreat
C:lag
D:retard
答案: 【lag】

5、单选题：
The main features of the telegraph were developed by two inventors, but it was Samuel Morse who successfully _________their ideas.（ ）。
选项：
A:conformed
B:financed
C:publicized
D:integrated
答案: 【integrated】

6、单选题：
In judging the degree of his guilt, the question remains whether he acted out of purely _______ motives or whether he acted with thoughts of his own advantage in mind.（ ）。
选项：
A:disinterested
B:benevolent
C:generous
D:selfish
答案: 【disinterested】

7、单选题：
All these rumors are _______false, but the firms in question would be well advised not to bother denying them.（ ）。
选项：
A:defectively
B:conditionally
C:indistinctly
D:utterly
答案: 【utterly】