To battle world hunger, the great scientist once traveled to many places where populations _______ faster than crop production at that time.
A. expanded B. were expanding
C. has expanded D. would expand
The government won’t have the public officials ___ asking for gifts or money from people.
A. coming up with B. putting up with
C. getting away with D. doing away with
Unfortunately, some natural signs which might have helped more people survive the earthquake were ________.
A. abandoned B. ignored
C. deserted D. rejected
. ___________ the extreme levels of air pollution, city authorities have started to take measures to quickly reduce pollution levels and protect city dwellers.
A. In spite of B. As well as
C. In response to D. By means of
Whenever I read the old letters, _____ was fairly often, sweet memories warmed my heart.
A. who B. which C. when D. that
An expert says, “ I think it is unpredictable for nature. You don’t know what will happen but _________we are preparing.”
A. somehow B. somewhat C. anyhow D. someway
