Many residents fled their homes when the volcano _________ to ...

★ Past Tense and Neutral

Many residents fled their homes when the volcano _________ to erupt.

A. threatened

B. is threatening

C. has threatened

D. would be threatening

Preview next quiz:

When I was at the shopping centre yesterday, I saw the police _________ after a shoplifter.

A. chased

B. chasing

C. was chasing

D. had been chasing