3、之一。Cairoisoneof the biggest andbusiest cities inAfrica. 3.他们去过很多有趣的地方。Theyhave been to manyinterestingplaces. 4.他们正在倒计时。Theyare counting down thedays. 5.他们发现单词的拼写和发音很难。Theyfind it hard to spell andpronouncethewords. 6.罗宾逊一家人喜欢游览世界。TheRobinsonslove seeing theworld. 7.到目前为止,
4、他们已经学会说德语、法语、汉语、和阿拉伯语。 So far ,theyhavelearnttospeakGerman,French,ChineseandArabic.