________ the words,the daughter understood what her mother was trying to tell her.
A.To be heard B.To hear
C.Heard D.Hearing
This vase ________ perfect but for a few small holes in its base.
A.would have been B.should have been
C.shall be D.would be
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