____ has helped to protect the environment is worth praising.

Sometimes I think it would be an excellent rule to live each day _____ we should die tomorrow.

You’d better _______ too much meat. You are much too fat.

n is so handsome ,so cool !____he reminded me so much of Beckham!

The maths exam is not easy, is it?— ________.Even Tom________to the bottom students passed it.[ ]