题一:________ information is very important to businessmen.
a. collecting b. collect c. collected d. being collected
题二:________ to sunlight is bad for your skin.
a. exposing b. being exposed c. expose d. to expose
题三:we all know that, _____, the situation will get worse.
a. not if dealt carefully with b. if not carefully dealt with
c. if dealt not carefully with d. not if carefully dealt with
题四:the flowers his friend gave him will die unless _____ every day.
a. watered b. watering c. water d. to water
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