— There's someone outside. Who it be ?
— It must be Mary. She promised to come over at 8: 00.
A.must | B.can | C.shall | D.need |
推荐套卷
— There's someone outside. Who it be ?
— It must be Mary. She promised to come over at 8: 00.
A.must | B.can | C.shall | D.need |