she ___ a blouse by herself yesterday,but i am not sure whet

She__a blouse by herself yesterdary,but I am not sure whethe she__a blouse by herself yersterday ,but i am not sure wheth She ___ know the answer,but I'm not sure.A.maybe B.may be C. He is not sure about this idea now,but I am sure we will ___ He_____there now,but I am not sure. i am sure you would rather she went to school by bus,___? Mary ___ come to the party,but i am not sure of the time yet I am not sure if she is from Canada.还是I am not sure that she I ___pay Tracy a visit,but I am not sure whether I will have I ___ pay Tracy a visit,but I'm not sure whether I will have M___ I want to buy a pen,but I am not sure. I thingk he is _________ to win.but I am not sure.A.possible