【題目】On average, there are 800 tornadoes in the US each year, _______ about 80 deaths and 1500 injuries.
A.cause
B.to cause
C.caused
D.causing

A. having discovered B. discovering

C. to have discovered D. that they discover

【題目】Mr. Smith—our English teacher, is said ________ to England for holiday last week.
A.to return
B.returning
C.to have returned
D.having returned

A. in theory B. in favour

C. in particular D. in practice

【題目】A quick review of successes and failures at the end of year will help _________your year ahead.
A.shape
B.switch
C.stretch
D.sharpen

【題目】Across the painting, we can see a horse running high speed like a missile across the sky.
A.to
B.on
C.of
D.at

【題目】If we virtual reality holidays, we wouldn't have any problems with the weather.
A.have
B.have had
C.had
D.would have

A. to indicate B. indicating

C. indicates D. indicated

【題目】Experts believe that television probably disappear in the future.
A.must
B.will
C.need
D.should

【題目】Millions of people all over China TV when the spaceship landed safely.
A.were watching
B.are watching
C.watched
D.have watched