6 ________Peter was sleeping; a thief broke into his house.7 It snowed ________ we arrived in Tokyo.8 She left her hometown________ she was five.
9 I was studying in the library__________ the UFO landed.
10.What were you doing ______ the big earth-quake happened?
人气：429 ℃ 时间：2019-10-18 02:49:54
解答
6.while
7.when
8.when
9.when
10.when
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