补写出下列名句名篇中的空缺部分。 (1)学而不思则罔,( )。 (《孔子语录》) (2) 举世而誉之而不加劝,( )。 (庄子《逍遥游》) (3)斯是陋室,( )。 (刘禹锡《陋室铭》) (4) ( ),枯松倒挂倚绝壁。 (李白《蜀道难》) (5)乱石穿空,( ),卷起千堆雪。 (苏轼《念奴娇·大江东去》) (6 )( () 4. Since several years ago,many supermarkets in China have free plastic bags. A. to stop to provide B. to stop providing C. stopped to provide D. stopped providing