非谓语动词专项练习题及答案汇编(共5页).doc

精选优质文档-倾情为你奉上非谓语动词专练1._ more attention,the trees could have grown better. A.To give B.Having given C.Given D.Giving2.The first textbooks _ for teaching English as a foreign language came out in the 16th century. A.to be written B.written C.being written D.having written3.The missing boys were last seen _ near the river. A.to play B.play C.to be playing D.playing4._ in thought,he almo