English became the official language for business __ the fact that the population was largely Chinese.[ ]

Though they are______little children , they have worked out _______many difficult math problems.

下列句子中对“之”意思的判断准确的是（ ）①悟已往之不谏。 ②悦亲戚之情话。③其翼若垂天之云 ④覆杯水于坳堂之上⑤脱然有怀，求之靡途。 ⑥之二虫又何如⑦且夫水之积也不厚，则其负大舟也无力。 ⑧奚以之九万里而南为⑨则芥为之舟 ⑩尝与人佣耕，辍耕之垄上

There are many shops on _____ sides of the street. You can buy everything you want.

Tommy, do the dishes.—Mum, it’s a girl’s job.I would rather________the floor.[ ]