-Is Mr. Li in his office ?
-No, he __________ in the office. He’s ill in hospital.
A.must be | B.can’t be |
C.should be | D.needn’t be |
-Is Mr. Li in his office ?
-No, he __________ in the office. He’s ill in hospital.
A.must be | B.can’t be |
C.should be | D.needn’t be |