----- Where is Jack?.-----He______ be in the reading room .I saw him just now. A．need B．can.

Question

----- Where is Jack?.-----He______ be in the reading room .I saw him just now. A．need B．can C．must D．would

Answer 1

C

试题分析：句意：Jack在哪里？他一定在阅览室。我刚才看见他了。本题考查情态动词表示推测的用法。must 一定，表示肯定的推测，只用在肯定句中；can 用于否定句或疑问句中。need 需要；would 愿意。故选C。