【文章內(nèi)容簡(jiǎn)介】
s of plants. =People developed a kind of paper which/that was made from the fibers of plants. 人們研制出一種用植物纖維制成的紙?! he houses being built are for the teachers. =The houses which/that are being built are for the teachers. 正在(被)建的那些房子是給老師們的?! he little boy standing over there is a classmate of mine. 站在那邊的小男孩是我班的同學(xué)。