It is not always easy for the public to see _______ use a new invention can be of to human life.
A. whose B. what C. which D. that
_______ that we can't get the necessary equipment, we will have to give up the
experiment.
A. To assume B. Assume C. Assumed D. Assuming
Attackers in China’s Xinjiang region crashed two cars into shoppers at a market in May, 31 people.
A. killed B. to kill
C. killing D. being killed
-----How dangerous it was !
-----Yes, but for the young man’s quick action, he run over by the car.
A. should have been B. would be
C. could have been D. might be
Chemical pollution will bring about a threat to agriculture and food chain, and
to human health.
A. frequently B. significantly
C. steadily D. consequently
By the year of 2053 there will be 487 million aged people in China， means that one third of the population will be over 60.
A. that B. which C. what D. where
