A. So
B. In order
C. So that
D. To
A. to answer
B. answer
C. answering
D. please answer
A. video conferenced
B. video conference
C. will video conference
D. will be video conferencing
A. arranged
B. have arranged
C. had arranged
D. arrange
A. diversity
B. mixture
C. variety
D. collection
A. believes
B. is believing
C. has believed
D. will believe
A. is
B. was
C. has been
D. may be
A. allow
B. involve
C. accommodate
D. provide
A. applications
B. concerns
C. goodness
D. advance
A. can
B. must
C. may
D. will
A. will fall
B. fall
C. have fallen
D. are falling
A. do you do
B. will you do
C. would you do
D. did you do
A. will help
B. am going to help
C. helped
D. am helping
A. I'm happy.
B. I don't know.
C. I'm angry.
D. Sorry. I need to go now.
A. contact
B. to contact
C. contacting
D. to contacting
A. will talk
B. will be talking
C. are talking
D. are going to talk
A. imagine
B. expect
C. remember
D. see
A. attracts
B. attraction
C. attract
D. attractive
A. lonely
B. lonelier
C. loneliness
D. loneliest
A. A comparison between the Moon and Earth
B. Physical characteristics of the Moon
C. The effect of the Moon on Earth
D. All are correct
A. Sun's
B. Earth’s
C. gravity’s
D. the Moon’s
A. A person would lose 5/6 of their weight if they were on the Moon.
B. A person would weigh much less on the Moon than on Earth.
C. The Earth weighs six times as much as the Moon.
D. All are incorrect
A. They happen twice a month at New Moon and Full Moon.
B. The Sun causes higher tides on Earth than the Moon does.
C. They are caused by both the Sun and the Moon.
D. They are dangerous.
A. combined together
B. arranged in a line
C. affected by the other
D. All are correct
A. mortar
B. refine
C. fiber
D. lager
A. rewrite
B. enjoy
C. mother
D. agree
A. doctor
B. father
C. picture
D. prefer
A. pollution
B. measure
C. listen
D. dinner
A. depend
B. advise
C. affect
D. listen
A. ferment
B. zipper
C. thresh
D. process
A. loudspeaker
B. leader
C. theater
D. feature
A. document
B. computer
C. music
D. adjust
A. century
B. crystal
C. stone
D. might
A. out
B. sound
C. southern
D. surrounding
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