Hundreds of _____ of science fiction are published each year in our country.
Which of the following is wrong? _________
—Shall we go for a walk rather than watch television?— _________. Whatever you want to do is fine with me.
Robert has _________ the good habit of making notes.
You can't imagine what great fun my brother and I had _________ up and down the tall, shaky steps.
—I find the environment is getting worse and worse. —Yes, that is _________ we humans go against nature.