1、单选题：
Taking part in extra-curricular activities ________ beneficial to students’ overall development. ( )
选项：
A:can
B:be
C:is
D:are
答案: 【is】

2、单选题：
Any government should take measures to prevent and control the pandemic; ________________, they will pay a heavy price. ( )
选项：
A:while
B:but
C:however
D:otherwise
答案: 【otherwise】

3、单选题：
According to structure, which type does the following sentence belong to?The man whose smartphone was stolen looked upset. ( )
选项：
A:compound sentence
B:complex sentence
C:compound-complex sentence
D:simple sentence
答案: 【complex sentence】

4、判断题：
The old man returning home after eight years’ absence to find that the neighbors he had known were no longer there.（ ）
选项：
A:对
B:错
答案: 【错】

5、判断题：
Find a decent job is hard for some college graduates. （ ）
选项：
A:对
B:错
答案: 【错】