They are not sure .

It’s time that I ____ on night duty. I must be off now.-I’d rather you ____ at home on such a family reunion night. [ ]

your brother Daniel in Class 1, Grade 7—No, he’s in Class 2.

There _________ be a fashion show in our town tomorrow.

He didn’t go to the concert yesterday,didhe-______.He was busy studying for the testsall day.