2. 外语
  3. In its gaseous state, water______invisible vapor.

In its gaseous state, water______invisible vapor.

admin2019-07-01  17
问题 In its gaseous state, water______invisible vapor.
选项 A、is a
B、are
C、is the
D、is an
答案D
解析 Is an correctly completes the sentence. The uncountable noun water takes the singular verb is. The noun phrase invisible vapor is non-specific and begins with a vowel sound. Therefore, it takes the indefinite article an.
转载请注明原文地址:https://kaotiyun.com/show/OvfO777K
0

托福（TOEFL）

相关试题推荐
随机试题
最新回复(0)