The last five years a great improvement in the relationship between the two countries, but there is still a long way to go.

made Bill so angry— _____. His girl friend promised to comeat 8:30, but she hasn’t come yet.

Whom was the book ________ Frog ________ by—Mo Yan，a famous writer.

John asked Tom ______ give him a lift to the office.

Once in bed, I read for twenty minutes and then ______ the light.[ ]