He is not native, if he were, we _______ this discussion over his identity.

The prisoner ________escape from the prison, but failed. []

1Excuse me, sir. I boughtthe shoes yesterday, but they are in different sizes. One is size 37, _____issize 38.

We must be aware of the potential causes of traffic accidents and act to prevent them—this is true ____ everyone.

uldhave spent more time on English, otherwise I wouldn’t have failed in the exam —Youare right