[ Past Tenses ]
The fire …………………………… when the first fire fighters arrived at the scene.
A. was still burning
B. is still burning
C. was still burned
D. still burned

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Grammar › ViewYou _____ pay to go in museums in Britain. They’re usually free.
A. shouldn’t
B. don’t have to
C. mustn’t
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He loves playing soccer, it is his favorite sport.
A. NO CHANGE
B. soccer; it is
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a. at
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Do you still have a toothache? I think you should _____ a dentist as soon as possible.
A. seeing
B. to see
C. see