Breathing is a mechanical process ____ fills the lungs with ...

[ Grammar ]

Breathing is a mechanical process ____ fills the lungs with air.

A. when

B. where

C. which

D. whose

Select your answer:
A B C D E

Other quiz:

Prepositional Phrases › View

What is the object of the preposition in this sentence?

She couldn’t believe what she saw down the street.

A. saw

B. down

C. the

D. street

Vocabulary › View

What is a long, pointed tooth?

A. A hoof
B. A cavity
C. A gum
D. A fang

Reported Speech and Reported Questions › View

My boss says: “I can speak English”

A. He said he could speak English

B. He said she can speak English

C. He said he could English

Grammar › View

If you are not in the car by the time I start ________ the engine, I will leave without you.

A. at

B. in

C. up

D. on