A：闻气味
B：分别通入澄清石灰水
C：观察颜色
D：分别伸人燃着的木条
句型转换。
It was u____ that he fell off the truck without being hurt.
He has d____ his whole life to protecting wild animals.
形近字组词
项____ 江____
领____ 扛____
