There was ______ time _____ Chinese used foreign oil.
A.a; when | B.a; while | C./; when | D./; while |
It’s very wise of you to ________ well trained workers _____ untrained ones in the
assembly line.
A.substitute; for | B.substitute; with | C.replace; with | D.instead; by |
He was badly injured and couldn’t _______ the game.
A.attend | B.join | C.participate | D.take part in |
. Such women _____ know Tom thought he was charming.
A.that | B.which | C./ | D.as |
. After he retired from the office, Tom _______ painting for a while, but soon lost interest.
A.took up | B.saved up | C.kept up | D.drew up |
Earth is a rocky planet _______ liquid water, which is necessary for life, can exist.
A.as | B.which | C.where | D.when |