第21页

信息发布者：
作业精灵老师示例:
S1：How do we usually go to Beijing？
S2：We usually go to Beijing by train.
S1：How do we usually go to Australia？
s2：We usually go to Australia by plane.
a
a
a
c
b
Tracy
country
tree
truck
tries
trade
draw
driver
drives
1. Tracy，country，tree，truck，tries，trade；
上述单词中tr字母都发/tr/。

2. draw， driver，drives
上述单词中字母组合dr都发/dr/。
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