根据内容提示完成句子（每题1分，共5分）
1. （这里一定有什么误会）. I don’t know what you’re talking about.
2. This character was a little failure but was loved for his optimism and (战胜一切困难的决心).
3. The teacher told us to (将难懂的单词划线) and look them up in the dictionary.
4. Nobody before Jane fully understood chimp behaviour. She spent years (观察并记录) their daily activities.
5.The function of the smile is to show happiness and (使人放松).
I was in the middle of my call because I had no more coins to put in the box.
A. cut off B. broken in C. hung up D. put down
The couple tried every effort to the judges, who tried the cases, of their innocence (清白) only in the contrary.
A. prove; to result B. charge; resulting C. convince; to result D. confirm; resulting
He’s perfectly to live in the mountain and paint pictures all day, though he is badly off.
A. curious B. proud C. anxious D. content
The man was walking along the street he stopped and looked as if whether he was going in the right direction.
A. when; seeing B. when; to see C. while; seeing D. while; to see
He wondered if he could slip out of the lecture hall without anyone .
A. noticing B. noticed C. to notice D. being noticed
