根据句意及图片或首字母提示完成单词。(5分)
The students are cleaning (打扫) the________（教室）now.
What can you see on the__________（黑板）?
There are some________（鸟）in the tree.
How many__________（铅笔）are there?
—What’s that in English?
—Sorry, I don’t k__________