2. 外语
  3. Water plants provide food for many animals, and______also supply oxygen to the water.

Water plants provide food for many animals, and______also supply oxygen to the water.

admin2019-07-01  70
问题 Water plants provide food for many animals, and______also supply oxygen to the water.
选项 A、what they
B、do they
C、they
D、they are
答案C
解析 The pronoun they is the subject of the second clause.
转载请注明原文地址:https://kaotiyun.com/show/QefO777K
0

托福（TOEFL）

相关试题推荐
随机试题
最新回复(0)