B1L4 文法練習

Oil provides fuel for cars and is also ________ making plastic.

• used for

• used at

• used

• used to

For those who have trouble getting a good night’s sleep, 　　　
some helpful tips.

• they are

• it is

• here is

• here are

The thing 　　　　　 really makes me worry is that we haven’t prepared for every possible danger.

• who

• whom

• which

• whose

The thing ​​ (a)   really makes me worry is that we haven’t prepared for every possible danger.

• who

• whom

• whose

• which

Do you understand the thing _______ I am talking about?

• who

• which

• that

• that/which

Do you understand the thing ​ (a)   I am talking about?

• who

• which

• that

• that/which

I need someone _______ can practice English with me.

• who

• that

• which

• who/that

I need someone ​ (a)   can practice English with me.

• who

• that

• which

• who/that

I know the girl _______ parents are both teachers at our school.

• who

• whose

• whom

• which

I know the girl ​ (a)   parents are both teachers at our school.

• who

• whose
• whom

• which