Some exchange students _______ with their host families this time yesterday.
A. are chatting B. will chat C. were chatting D. have chatted
Nowadays people wish to have ______ food than before as their life improves.
A. healthy B. healthier C. healthiest D. the healthiest
Alex believes he will soon be able to play chess as ______ as the computer.
A. well B. better C. best D. the best
Did the policeman give much _______ on how to protect personal information?
A. note B. tip C. advice D. book
_______ knowledge and experience are important to finish that task.
A. Either B. Neither C. None D. Both
The headmaster introduced ______ to the German visitors before the welcome party.
A. we B. us C. our D. ours
