根据句意、首字母或中英文提示,写出句中所缺单词。
There are al kinds of trees on the_______(地球).
The boy was late for class. He went into the classroom _______(很快地).
He never ________ (回复)to me. So I stopped writing to him.
We should _______(决定) what to do next.
Don’t stay at home a_________. Come down and play with us.