1. 那时他正在努力算这道数学题。
He was trying hard to this math problem at that time.
2. 史密斯先生说话很慢以便学生们能够听清楚。
Mr. Smith speaks slowly the students can hear him clearly.
3. 今天天气很好，为什么不去散步？
It's fine today._ ____go out for a walk?
4. 你最好不要过分依赖父母，要学会照顾自己。
You'd better not too much your parents, and learn to look after yourself.
5. 对不起，刚才我错拿了你的伞。
Sorry, I took your umbrella just now.
6. 昨天你发生了什么事？
What you yesterday?
7. 乘电梯到二楼，向右拐。
the elevator the second floor and turn right.