2 . __________ made him feel satisfied was ________ his students were able to read, speak and write in English. (用适当的词填空)

3 . Being reflective is an important part of active learning. That is ________ you are thinking actively and critically while reflecting on the learning materials. (用适当的词填空)

4 . He is no longer __________ he used to be. (用适当的词填空)

5 . The problem is ________ you can arrive at the airport in time or not. (用适当的词填空)

6 . The reason why I can’t go travelling with you is________________ I have something unexpected to deal with. (用适当的词填空)

7 . Don’t be sad. The most important thing is __________ we must learn from our mistakes and move on. (用适当的词填空)

8 . The reason for his absence is __________ he hasn’t been informed. (用适当的词填空)

9 . The debate between them was ____________ it was worthwhile to afford the extra expense of hiring an expensive apartment.（用适当的词填空）

10 . You are saying everyone should take equal responsibility, and that is________ I disagree. (用适当的词填空)