Animals are obviously _____ lower form of life than______ man.

raduated from college at a very young age—Oh,he ______ have been a very smart boy then

Therecommendation he gave me is that I ____ more traveling to open my eyes.

the fact _______there is plenty to see, itwould be better if you made a list before hand of ______exactly you want to go.

242. We have got everything ready and all of us are waiting for you. You should have _____ quickly for the trip to Guangzhou.