l. I must be off now，（)my sister is expecting me.A.orB.soC. forD. and

–It’s getting late. I must go now.－（).

“Must I finish my homework now？” “No, you（) . But you（) finish it this evening. ”

Mr. Green______ my letter, otherwise he would have replied before now.A．must have received

______ my umbrella with me when I came out this morning, I should not be so wet now.A．Had

Speaker A:I broke my ankle last Tuesday. And now I have to be on crutches for six weeks. S

______ me the money for my tuition then, I would be working on the farm now.A．Had my uncle