题目内容

Bacteriaaswellasvirusandfungi________toskininfection.

A. contributes
B. contribute
C. is contributed
D. have contributed

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Doctorshouldbe__________ofpatients'medication historybeforeprescription.

A. alert
B. aware
C. absent
D. acute

It_________cloudy,wedecidedtotakeumbrellawithus.

A. was
B. is
C. were
D. being

Itisrequestedthatyou_________abloodtestwithouteatingbreakfast.

A. take
B. will take
C. are taking
D. must take

Match the words in the left column with thewords in the right column to form certain expressions