摘要： -- How did she get infected? -- She the viruses without any protection. A. exposed to B. had exposed to C. was exposed to D. had been exposed to
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—How did she get infected?
—She ____ the viruses without any protection.
|
A．exposed to |
B．had exposed to |
C．was exposed to |
D．has exposed to |
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--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 |
查看习题详情和答案>>