A:①④
B:②④
C:①②③
D:①②④
在学习化学肥料时,老师将NH4NO3与熟石灰强台、研磨,同学们闻到了刺激性气味.
A.—Is this your skirt,cat?
—Oh,yes.Thank you.
B.—I like this book.
—Me too.
C.—This is my new T-shirt.
—How nice!