27. People have become aware ______the fact that carbon dioxide, poison to the environment, contributes_____ air pollution.
| A．of, to | B．/, to | C．of, of | D．of, for |
— Have you got any particular plans for the coming holiday?
— Yes, _____, I’m going to visit some homes for the old in the city.
| A．If ever | B．If busy | C．If anything | D．If possible |
Eye doctors suggest that a child’s first eye exam____at the age of six months old.
| A．was | B．be | C．were | D．is |
He bought a book with the _____ 50 dollars and then his money ______.
| A．remaining; was used up | B．remaining; ran out of |
| C．remained, ran out | D．remained, gave out |
The government has been accused of not responding ______ to the needs of the homeless.
| A．accurately | B．appropriately | C．mildly | D．gently |
A man is being questioned in relation to the _____murder last night.
| A．advised | B．attended | C．attempted | D．admitted |