Children’s brains can’t develop properly_______ they lack protein(蛋白质).
Over 20% of the students at that school _____ the habit of smoking, which is beyond imagination.
______ of danger on the road at night ,the girl had to go home with a friend _______ her.
Mr. Green, for _____ life had been very hard, donated his possessions to earthquake-hit families in Sichuan.A. whose B. whom B. which D. that
He doesn’t lack ______ to learn. You don’t have to tell or force him to do this or that.
---- How about going hiking this Sunday? ---- _______.I love sports and getting close to nature.