听录音，给图写上英文大写字母编号。
your bag is_______than mine(我的). A.heavyB.heavier
what are you doing?__________________. A.i am doing the dishes.B.i do the dishes.
wu yifan played football_______his friends. A.withB.together
we went beijing________jan.1st. A.inB.on
I went_______on my holiday. A.skingB.skiing
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