1£®The engineer hurried back to the factory and found out when and how the accident happened.

2£®The teacher encouraged every student to answer questions confidently(confidence) in class.

3£®Lacking(lack)confidence resulted in his failure in the interview. That's to say, a lack of_confidence resulted in his failure in the interview.

4£®All the students don't need to be nervous about the coming final exams.

5£®Some people in Beijing go to work half an hour earlier every day to avoid being_caught(catch) in the traffic jam.

6£®I thought of my best friend Tom when I saw the old photo.

7£®I wouldn't like to go to the party tonight. But I have a lot of homework to do. In_addition, I'm not willing to see John.