It is essential ______ these instructions carefully to ensure his computer system has the technical capabilities he needs to fulfil the task.
Athat he reads
Bhe reads
Cthat he read正確答案
Dhe must read
答案與詳解
為什麼答案是 C
that he read 完全符合 It is essential that S + V(原形) 之假設語氣結構，that 作為連接詞引導名詞子句，read 為原形動詞，文法正確且語意完整。
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