It wasn’t until dark_________ he found _________ he thought was the correct way to solve theproblem.

We should take effective measures to the infectious disease.

Why not come over at the weekend My family seeing you again.

Our new English teacher, who is said to have moved back to China, ______ in America for almost ten years

This job is ______ doing, but it isn’t ______ to spend so much time on it.