问题

Safety in school has been ofgreat concern because of frequent reports about accidents studentsgot injured or killed while in school

A:are
B:were
C:will
D:is

正确答案是：

同类题型

Theboywrites________.

He always eats _____meat for meals.

What the suspect said was completely what the witness said[ ]

Only by following this method　　　.

Our school has more than two ______ teachers and many____ students.