问题

How did he get infected? –She ____the viruses without any protection

A:exposed to
B:had exposed to
C:was exposed to
D:had been exposed

正确答案是：

同类题型

He is famous______a writera________his novels

You failed again in the maths exam yesterday—-Don’t tell Dad about it; if he knows that ,I’m dead

Which performance do you like best—All are marvelous and the best one is just a matter of personal________.

We’re happy that our predictions so accurate , which is far from expectation .

Now when people refer to England, you find Wales _____as well[ ]