The more ______ we take the safety standards, the further we can speed up the development of the school bus industry.

―Do you know where David is I couldn’t find himanywhere.―Well. He ______ have gone far — his coat’s stillhere.

She won’t leave the TV set, ____ her husband is waiting for his supper.

The well-known director, two of________ films won Oscar awards, is said to have retired.

I think drinking milk is a good way ____. —Yes, I agree.