— What’s your new math teacher like?— Oh he is very kind he looks serious.A. thoughB.

问题补充：

— What’s your new math teacher like?

— Oh, he is very kind, he looks serious.

A. though

B. because

C. if

D. and

答案：

A. though

B. because

C. if

D. and

解析：考查连词辨析。句意 你的新数学老师如何？他很好虽然有点严肃。根据提到的he looks serious ， he is very kind ，故用though来连接。