Laughter, along with an active sense of humor, ______ protect you against a heart attack, according to a recent study.
A. have helped B. helped C. help D. helps
To some degree, uncontrolled information from the Internet that many people turn ______ false.
A. to turn out B. to turns out C. turn out D. turns out
There are two thousand students in this college, ______ are from the countryside.
A. one-third of them B. one-third of which
C. one-third of whom D. one-third in which
The lazy boy tried to get through the exam without hard work in the way ______ his friend suggested.
A. in that B. in which C. which D. where
He has ______ lung cancer for several years and is never _______ pain.
A. recovered from; away from B. suffered; away from
C. recovered; free from D. suffered from; free from
We have ________ in your bill the cost of the teapot you broke just now.
A. increased B. included C. contained D. charged
