He ___ have forgotten his keys. That’s why he can’t ...

[ Modals ]

He ___ have forgotten his keys. That’s why he can’t get in.

A. could

B. may

C. must

D. would

Select your answer:

Other quiz:

Past Tense vs Present Perfect Tense › View

I ______ (hear) some strange noise in the kitchen last night. It was my younger brother who was playing with the rubbish bin.

A. heared

B. heard

C. have heard

D. have heared

Grammar › View

Choose the correct word to complete this sentence: “Your sister is stronger … my brother.”

A. Than

B. Then

C. As

D. Like