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【題目】Several weeks had gone by ________ I realized the painting was missing.

【題目】When the sun’s rays hit the earth, a lot of heat ______________ back into space

【題目】Tourists are reminded to take everything ______________ to them before leaving the hotel.

【題目】5G smart phones are believed to work 9 and 20 times faster than previous______________.

【題目】They were ______ little children that they didn’t know what to do.

【題目】Some insects take on the color of their surroundings to ________ themselves.

【題目】Look! The sweat ______________ down your face. Let me turn on the air conditioner.

【題目】

【題目】Although I spoke to him many times, he never took any ________ of what I said.

【題目】John is a(n) ________ boy. Whenever I see him, he is working.