Do you have to write to your friend?-Sorry,but I really ______. A.can't B.must C.have D.should
问题描述：
Do you have to write to your friend?-Sorry,but I really ______. A.can't B.must C.have D.should
答
D
你必须要给你朋友写信吗?
对不起,但我真得应该写
回答是：对不起,说明是否定的意思,也就是说不是必须写.所以不能选B.
A和C的选项意思根本不符.
只有选D.Sorry but I really should.对不起,但是我应该写.You must be here at 5:30 tomorrow moring.-Sorry,I____ be here so early.A.needn'tB.mustn'tC.can't D.may notC对不起，我到不了这么早 上一题给你说错了，应该是D，上面有解释 ~~~~~~~~~~～～~~~~祝你进步，如对你有帮助，请及时采纳~~~~~~~~~~~~~~~~