Some people would like to do shopping on Sundays since they expect to pick up wonderful_____ in the market.【CET-4真题
A. Batteries
B. bargains
C. baskets
D. barrels
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The professor could hardly find sufficient grounds_his arguments in favor of the new theory.【CET-4真题】
A. on which to base
B. which to base on
C. to base on
D. to be based on
Many people think of desert as_________regions,but numerous species of plants and animals have adapted to life there.
A. void
B. virgin
C. barren
D. wretched
Deserts and high mountains have always been a ____________ to the movement of people from place to place. 【CET-4真题】
A. barrier
B. fence
C. prevention
D. jam
Hosts and guests were matched up by Airbnb, a firm _________in San Francisco.【CET-4 真题】
A. based
B. basic
C. barrier
D. bask