1 . When did you enter the room? The police wants to know it.(改为含名词性从句的复合句)
→ ________________ .

2 . ________ ，I’ve decided to become a volunteer myself to help people in other lands.
既然我明白了我妈妈的工作有多么重要，我已经决定自己也成为一名志愿者，去帮助其他国家的人。

4 . We don’t have good solid information on where the people are.（英译汉）

5 . – I’m wondering _________ at a low price.
- You can book one through our official APP.

A．how I can buy the air ticket	B．how can I buy the air ticket
C．when I can buy the air ticket	D．when can I buy the air ticket

6 . Your new coat looks so beautiful. Could you tell me ________?

A．where do you buy it	B．where you buy it
C．where you bought it	D．where did you buy it

7 . Do you know        ?

A．whose pen is this	B．whose pen this is
C．whom does the pen belong to	D．whom the pen belong to

8 . —Could you tell me ________?
— Sure. I’ll come back in two weeks.

A．Why you went there	B．when will you come back
C．How soon you will come back	D．how long have you been there

9 . The woman asked the policeman where         .

A．the post office is	B．the post office was
C．is the post office	D．was the post office

10 . —Can you show me ________ an e-mail?
—Sure. Just do it like this.

A．why can I send

B．how can I send

C．why I can send

D．how I can send