填介词或副词1.We must climb _ to the top of the hill befor ten.2.T
填介词或副词1.We must climb _ to the top of the hill befor ten.2.There's a bridge _ the river.
3.Put _ the vase,or you will break it.
适当形式填空1.The students came into the classroom as soon as the ball __ (ring)
2._(fail) is the mother of success.
3.Put _ the vase,or you will break it.
适当形式填空1.The students came into the classroom as soon as the ball __ (ring)
2._(fail) is the mother of success.
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