题目内容

_______ are used to protect your hea

A. Helmets
B. Safety goggles
C. Safety boots

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【C11】

A. stimulated
B. accommodated
C. encouraged
D. tolerated

【C17】

A. off
B. out
C. about
D. through

【C14】

A. vote
B. quiz
C. poll
D. questionnaire

【C16】

A. as
B. though
C. since
D. whereas

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