Listening to loud music at rock co-考呗网题库移动版

单选题 Listening to loud music at rock concertscaused hearing loss in some teenagers.

A． is
B． are
C． has
D． have

参考答案C

解析:【答案】C。解析：Listening to…是动名词短语作主语，故谓语动词用单数，根据caused可知用现在完成时的单数形式。

单选题 -I'm sorry I didn't make it to your party last night.
-I know you're busy these days.

A． Of course
B． No kidding
C． That's all right
D． Don't mention it

单选题 Experts think thatrecently discovered painting may bePicasso.

A． the; 不填；
B． a; the
C． a; 不填
D． the; a

单选题 Bats are surprisingly long-lived creatures, somea life span of around 20 years.

A． having
B． had
C． Have
D． to have