23The day before yesterday, I ______ one of my old friends in the street

If you don’t know what the new words mean , ________- in a dictionary .

Could you tell me somethingabout the boy who helped you just now —- Sorry, I knownothing about him, we are _____.

Here is _____eraser. Is _____eraser yours —Yes, it is. Thanks!

I think our government should pass a law to ________ food waste.