I wonder makes him so sad. A. what it is that B. what is it that C. what it is D
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I wonder _______ makes him so sad.
A. what it is that
B. what is it that
C. what it is
D. what is it
试题答案
| A |
| 考查宾语从句使用了强调句型。题干意为:我想知道到底是什么使他如此悲伤。 |