769.Will you read me a story,Mummy?
OK.You ________ have one if you go to bed as soon as possible.
A.might
B.must
C.could
D.shall
770.Pity you missed the lecture on nuclear pollution.
I ________it,but I was busy preparing for a job interview.
A.attended
B.had attended
C.would attend
D.would have attended
769.答案是D;shall用于陈述句中的第二，第三人称时，表示说话人的允诺，警告，命令和威胁，题中是母亲对儿子的承诺。
770.答案是D;考查虚拟语气的用法，对过去的虚拟，主句用should/would/could/might+have done表达。
