[ Grammar ]
Yesterday at 5 O’clock I (prepare) ————— my speech.
A. were preparing
B. am preparing
C. was preparing
D. had been preparing

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Grammar › ViewThere are many ways to help our planet ________, saving water, recycling and reusing our disposable things.
A. but
B. such as
C. and
D. therefore
Vocabulary and Grammar › View
. We really need to stop using fossil _____ like coal and gas to heat our homes.
A. wildlife
B. horn
C. waste
D. fuels
Tenses › ViewIt didn’t rain in the spring. I think we _______ water next summer.
A. will run out of
B. are going to run out of
C. have run out of
D. run out of
Vocabulary and Idioms › View
Conservationists ______that experiments on animals be stopped.
A. recommended
B. banned
C. said
D. complained
