Her exhusband is an European.

Can I come and see you?

I always prefer to sit in front of the bus.

3楼～10楼答案揭晓：
3楼：Dolphin is sea mammal that is large,smooth and grey.
正解：A/The dolphin is a sea mammal that is large, smooth and grey.
dolphin, mammal 都是单数可数名词，泛指必须有冠词 a：a dolphin; a mammal；the dolphin 也正确。
4楼：My teacher gave me a good advice.
正解：My teachergave me (some) good advice.
advice 不可数名词，不可加冠词 a：advice
some advice 或 a piece of advice 也正确。
5楼：When was you arrive in Shanghai?
正解：When did youarrive in Shanghai?
问过去什么时候到达：did + arrive (原型动词)
6楼：I don't have as many friends as you have.
正解：I don't haveas many friends as you.
或更为正式的：I don't have as many friends as you do.
注意前句中的you是宾格代词（me, you, us, them, him, her, it）
7楼：It's time you get out of bed.
正解：It's time you got out of bed.
虚拟语气，用过去时got 来表示现在不真实的情况。
8楼：You had fish for dinner, hadn't you?
正解：You had fishfor dinner, didn't you?
这句是过去一般时态，辅助动词用did；句中的had是过去时，不是辅助动词。
9楼：Five employees of a restaurant indowntown Shanghai and some passer-bys were injured by a gas cylinder explosionat the restaurant on Saturday.
正解：Fiveemployees of a restaurant in downtown Shanghai and some passers-by were injured in a gascylinder explosion at the restaurant on Saturday.
Passer-by 的复数是 passers-by，s加在passer后，而不是by；其他类似的例子：sons-in-law, sisters-in-law；
还有 by a gas cylinder explosion 改为 in a gas cylinder explosion：那些人是在爆炸中受伤的。
10楼：I suggest you to leave him alone.
正解：I suggest you leave him alone
可以说：suggest (that) sb do sth 或suggest doing sth；
但别说 suggest sb to do sth

Practical English Usage
Michael Swan
Third Edition
pg 111
pronouns after as
In an informal style we can use object pronouns (me, him etc) after as.
•　She doesn't sing as well as me.
In a formal style, we prefer subject + verb after as.
•　She doesn't sing as well as I do.
A subject form without a verb (e.g. as well as he) is unusual in this structure in modern English.
@Felix_Wan

enough 的用法：
(1) enough + [名词/noun] :
Is there enough sugar in your tea?
I don't have enough money to buy a computer.
I didn't have enough time to finish my work.
(2) [形容词/adjective] + enough :
He is not good enough for you.
Tom isn't tall enough to reach the shelf.
They're not old enough to get married.

Werent out the room to a oversea student.

The policeis still looking for the murderer.

Ithink it will not rain tomorrow.

Itis safer to drink boiling waterthan tap water.

Mr Yang is the personal manager of the company. (人事部经理)

We’regoing to the cinema tonight. Would you like to go with us?

Do youobject to work on Sundays?

I'm lateagain, isn't I?