Question

__________a teacher and some students in the classroom.

A.There are
B.There has
C.There is

Answer 1

【答案】：C
考查主谓一致。这是个There be句型，be要用单数还是复数形式应由后面表语的数的形式决定。本题中表语显然是复数，故要用are。注意，不能因为紧邻空格的是单数a teacher而用is。