-------How many students are there in the classroom? ------- ________ .They are all on the playground.

I will go to Hongkong for my holiday,what about you?--- I haven’t decided  where      .

His advertisement income this year is about $36 million, over three times________of last year.

Some friends tried to settle the quarrel between Mr. and Mrs. Smith without hurting the feeling of _____, but failed.

After looking at many new cars, I found ________ which I would accept just as suitable.