is often the case is that Tom doesn’t study hard and fails in passing an exam. A
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______ is often the case is that Tomdoesn’t study hard and fails in passing an exam.
| A．That | B．As | C．It | D．What |
试题答案
【答案】
D
【解析】考察名词性从句。What引导主语从句What is often the case，并在句中作主语。本题容易错选B。as引导的是非限制性定语从句，指代一句话的内容在句中充当成分。