______________________, I would have given you his address.

If our government loses ________ of food safety , our health will be in_________.

Was it______ Tom’s carelessness______ your keys were lost?

Did Ann fail in English?—She ____. Don’t you notice that she looks depressed?

Mr Li always spends lots of time explaining things ______ us.–I agree. He’s patient enough to repeat them _______ us.