2. 外语
  3. A virus is harmful because______reproduces by killing the host cell.

A virus is harmful because______reproduces by killing the host cell.

admin2019-07-01  40
问题 A virus is harmful because______reproduces by killing the host cell.
选项 A、it
B、it is
C、can it
D、it can
答案A
解析 The subordinate clause needs a subject; it is a subject pronoun.
转载请注明原文地址:https://jikaoti.com/ti/J9hYFFFM
0

托福（TOEFL）

相关试题推荐
随机试题
最新回复(0)