I found this book on my desk when I came ...

[ Passive Modals ]

I found this book on my desk when I came to class. It — (leave) by one of the students in the earlier class.

A. must have left

B. must be left

C. must have been left

D. must have be left

Select your answer:

Other quiz:

Idioms › View

What does “I have a frog in my throat” mean?

A. repeating a noise over and over

B. unable to use your voice

C. when your tongue turns green

D. when you eat something weird

Vocabulary › View

She studies very hard and hopes for a better ______.

A. future

B. proverb

C. selfishness

D. background