As a student of Senior Three, he has very little free time _________ he can spend developing his own interest.
| A．when | B．in which |
| C．at which | D．that |
. Teamwork, or cooperation, is ________ it takes for a football team to win a game.
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The missing children haven’t been found yet. Something terrible ________ to them.
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—Hello, I’d like to see Doctor Smith at 3 o’clock tomorrow afternoon.
—Sorry, but he ________ a patient at that time.
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—Mum, would you buy some cherries for me? I love them.
—I’d like to, but they are not ________ in winter.
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Joanna won’t leave her job undone ________ told to.
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