Fur coats are good means to ______ people from frost bites in cold winter.

What do you think of the book written by MoYan— Oh, excellent. It’s worth asecond time.

What the science teacher does and says ofgreat importance to college students.

. Now that we’ve discussed our problem, are people happy with the decisions ________?

下列各句中，表达得体的一句是（ ）