问题描述：
1.the doctor advised the room ____ A to air B to be air C to have been aired
2.,don‘t worry all the children___ by nurese A are well taken care of B take good care of C are taken good care of
3 .you ____the bus if you had got up A must catch B must have caught C can catch
2.,don‘t worry all the children___ by nurese A are well taken care of B take good care of C are taken good care of
3 .you ____the bus if you had got up A must catch B must have caught C can catch
问题解答：
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