Go and get your umbrella. It is __________ you put it yesterday.A. how B. where C. when
____ he is very old, he is quite strong.
— Look! The tree is growing well. When ?— Sorry, I don’t know, either.
We’ll have an English exam January.
— Xu Beihong is known _____ a great Chinese painter.— Yeah. He is famous _____ his horse paintings.
We know that she enjoys books very much.