三道高中英语单选.
几道英语单选
1.In China,students____how to clean room since they are little.
a.were taght b.taught c.have been taught
2.one activity of the festive is the apple hunt _____student try to find the hidden apples.
which?where?whose?
3.It's uncertain____the city will become safe with blooding conflicts.
whether?that?what?