下列4组生物中，细胞结构最相似的是(    )

(1) How many units must we learn this term? （改为被动语态）
How many units____ this term?
(2)It took him two hours to finish reading the novel.（改为同义句）
He ____ two hours____ the novel.
(3)Parents should allow their children to choose their own clothes.(改为被动语态)
Children ____ to choose their own clothes.
(4)I was asked to clean up the room by my teacher.（改为主动语态）
My teacher____ to clean up the room.
(5)I believe that Lucy is allowed to perform a play for the old people.（改为否定句）
I____ believe that Lucy____  to perform a play for the old people.

词语练习

①仿写词语

喜洋洋   ____    ____    ____

开开心心   ____  ____  ____

②填数字成语

____心____意        ____全____美

____面____方        ____花____门

____上____下        ____颜____色

哈大客运专线(哈大高铁)于2012年7月正式通车,它大大缩短了哈尔滨到大连的客运时间。下图为哈大客运专线示意图, 图中阴影区域所示工业基地是(    )