There are ten （） in our school.

A.Certainly. Here you are
B.Please don’t mention it
C.It’s nothing
D.Yes, I have a hand

A.one and a half hour’s
B.one and a half hour
C.an hour and a half’s
D.an hour’s and a half

A.Not good news
B.The exam is difficult 
C.Not likely
D.It was put off yesterday