6)a.He wants to ask him a question,doesn't he?
b. He can't speak French, can he?
c. It was Emily's birthday, wasn't it?
d. The children left on a two week trip to Hawaii, don't they?
7)a.Many accidents are being caused by dangerous driving.
b. All flights are being cancelled because of fog
c. This problem is being solved by us
d. My car is being serviced in the garage