With the help of high technology, more and more new substances _____

With the help of high technology, more and more new substances ______ in the past 10 years.

#71929

discovered

have discovered

had been discovered

have been discovered

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The policeman stopped him when he was driving home and_____ him of speeding.

#84248

charged

accused

blamed

warned

My teacher______of us to hand in the compositions tomorrow.

#80633

asked

demanded

requested

begged

Most plastic don’t readily ______ heat and electricity.

#83860

attract

absorb

carry

conduct

I ___ I could fly to the moon by spaceship one day.

#80761

hope

wish

expect

suggest

Some of this heat near the earth's surface _________ make electricity.

#82842

is used for

is used to

gets used to

used to

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