Will you please tell John to come to my office– _____.

依次填入下面一段文字横线处的语句，衔接最恰当的一组是( ) (3分)在我国古代，人们盛物用的器皿除陶器等之外，还有一种容器，是葫芦。____________ ，____________。___________。____________， ____________。___________。① 最早的记载见于《诗经》，如《公刘》篇中“酌之用匏”的“匏”就是指葫芦②用葫芦作容器是先民们认识自然、利用自然的结果③葫芦是一种葫芦科爬藤植物的果实④葫芦成熟后，掏空里面的籽瓤，即可当容器使用⑤它大多呈哑铃状，上面小下面大⑥我国劳动人民使用葫芦盛物的历史非常悠久

We are afraid of the teachers______ strict with students —So am I

Would you please tell me_______ to do with all the problems, Mr. Chen — No problem.

No one knows exactly when the first peoplearrived in _______ is now called California.