Tom sacrificed his personal life ________ he could get ahead in his career.
A.in case B.as if
C.so that D.only if
There is still a strong argument ________ mobile phones are a particular risk to children.
A.when B.which
C.that D.what
Students ________ remain in their seats until all the papers have been collected.
A.shall B.might
C.could D.will
John Wood,an Internet blogger,discovered that Samsung ________ for not protecting its workers from a dangerous chemical used on its phones.
A.had criticized B.had been criticized
C.was criticized D.was criticizing
The sign says that children are admitted only if ________ by an adult.
A.to be accompanied B.accompanying
C.accompanied D.to accompany
Li Hua has been elected ________ monitor of our class to take ________ place of Ma Li.
A.the;不填 B.the;the
C.不填;the D.不填;不填