---Be quiet! Mr Smith is coming.
--- Don’t worry. It__________be him. Mr Smith is much taller.
A.mustn’t | B.must | C.can’t | D.needn’t |
---Be quiet! Mr Smith is coming.
--- Don’t worry. It__________be him. Mr Smith is much taller.
A.mustn’t | B.must | C.can’t | D.needn’t |