Such a fierce dog __ that we had to wait outside before we could get into his yard．

Ellen was a painter of birds and of nature，________，for some reason，had withdrawn from all human society.(2012·浙江，17)

Have you asked the policeman __________– Yes. He told us to turn left onto Main Street. It’s just on the right.

Your parents bought you _____ books last year， right—Yes. _________ them is 20.

Tom is fat. The doctor asks him to _______and _______.