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【題目】I attended many social _____while working abroad.

【題目】______ the cold, thin air and low oxygen levels also can cause mountain sickness.

【題目】She was the first woman________to the board.

【題目】The girl seems to be ______ experience as far as I am concerned.

【題目】On receiving a phone call from his wife ____she had a fall, Mr Gordon immediately rushed home from office.

【題目】—What can I do for you?

【題目】He made a great show of being ______ of her in front of other people, but he was only toying with her.

【題目】______from space , the earth looks blue .

【題目】Where are the speakers?

【題目】China is a_____country______to the third world.