1.Iftheteacherasksaquestion,youareecpectedtogive()answer.A.aB.anC.theD.another2.Ifyoudon'tknowtheanswer,itisallright()theteacherthatyoudon'tknow.A.tellB.tellingC.totellD.told麻烦有绝对把握的回答，事关重

Question

1.I f the teacher asks a question,you are ecpected to give ( )answer.
A.a B.an C.the D.another
2.If you don't know the answer,it is all right ( )the teacher that you don't know.
A.tell B.telling C.to tell D.told
麻烦有绝对把握的回答，事关重要~

Answer 1

1.C
（the answer 特指那个问题的答案）
2.C
（It is +形容词+to do….表示“做某事是怎么样的”,这是一个动词不定式作主语的句型,但不写在句首,用it 作形式主语）