【单选题】Peter is very smart, polite and well-behaved, ______ he is admirable.
【单选题】Catherine: I like him a lot because he is very, very smart, and he's pretty______.
【单选题】He was a very smart boy but he made a foolish decision this time.
【单选题】--- He worked out such different questions at a very young age. --- Oh, he ______ a very smart student then.
【单选题】对国产中型载货汽车的离合器,应在(A )时检查离合器的自由行程
【单选题】Tom is a very smart lad. If he ______ to work hard, he is going to be the top of the class.
【单选题】—My brother gets the first prize for computer in our city today. —I am sure he be a very smart student.
【单选题】He was a very smart boy but he made a foolish decision this time.