—Tom can’t find his gloves. Are these blue gloves his?
—No, they ______ be his. His gloves are black.
A.must | B.may | C.can’t | D.mustn't |
—Tom can’t find his gloves. Are these blue gloves his?
—No, they ______ be his. His gloves are black.
A.must | B.may | C.can’t | D.mustn't |