Hi， Steve． Let's swim in the river．
Oh，we can't． It's dangerous． Look at the sign "_________"． （ ）
A．B．
C．
______ do you put a lot of snakes into the forest？
To protect the ecosystem．（ ）
A．WhyB．WhichC．HowD．When
Yang Ming， could you please teach me Chinese？
_______．（ ）
A．Not at allB．It is not a big deal
C．With pleasureD．That's all right
_______ do you exercise，Tony？
Three times a week．（ ）
A．How oftenB．How soonC．How longD．How much
Zhong Wei told his friends ________ to be back to his hometown．（ ）
A．how happy he isB．how happy he was
C．he is how happyD．he was how happy
There will be no winner in the trade war between China and the US．
I agree． If we can't avoid it， the situation will get ______ as time goes on．（ ）
A．badB．badlyC．worseD．worst
B．
B．
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