Bats are surprisingly long-lived creatures,&-考呗网题库移动版

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

参考答案A

解析:【答案】A。解析：分析句子结构可知，该句为独立主格结构。some为逻辑主语并与谓语动词构成主动关系．故A项正确。

单选题 I'm tired out. Iall afternoon and I don't seem to have finished anything.

A． shopped
B． have shopped
C． had shopped
D． have been shopping

单选题 Let's learn to use the problem we are facinga stepping-stone to future success.

A． to
B． for
C． as
D． by

单选题 The issue is how toof radioactive waste.

A． deal
B． dispose
C． disposal
D． do