题文
—Is Mr. Smith over there?
—It ________ be him. He has gone to Beijing on business.
| A.can't | B.must | C.might | D.can |
—Is Mr. Smith over there?
—It ________ be him. He has gone to Beijing on business.
| A.can't | B.must | C.might | D.can |
试题篮
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