题目

【小题1】I used to ________ to music before going to sleep.【小题2】The boy had fun _________ with his little friends.【小题3】He doesn't know why he often feels _________ these days.【小题4】Tom learned to swim by _________.【小题5】His mother is ill in bed for a few days, so he is ________ about her health. 答案：【答案】【小题1】listen【小题2】playing【小题3】sleepy【小题4】himself【小题5】worried【解析】【小题1】句意：我过去常在睡觉前听音乐。听是listen to。故答案为listen。【小题2】句意：这男孩和他的小朋友玩得很高兴。和------玩是play with，have fun后跟动名词形式。故答案为playing。【小题3】句意：他不知三角形三边垂直平分线的交点是三角形的A.外心B.内心C.重心D.垂心