1.The boy swam a______ the river.

1.The boy swam a______ the river.

题目
1.The boy swam a______ the river.
2.What is the s_______ of the trains in China?
3.The paper is not s_____ enough.
4.The first cars had ________(wood)wheels,like wagons.
5.The train can travel ______ about 240 kilometres an hour.
A.for B.at C.in D,with
答案
1.around 2.speed ? 3.soft 4.wooden 5.c
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