填写句子。

①但愿人长久，____。

②落霞与孤鹜齐飞，____。

③____，把酒问青天。

④人有____，月有____，此事古难全。

根据下列句子的意思及所给汉语注释写出单词，每空一词。
____ Children must wash their clothes __________ (他们).
____ We can find the kind-hearted person __________ (到处).
____ There were two traffic __________ (事故) in the street last month.
____ His parents don't __________ (允许)him to go out alone at night.
____ Anna is a__________ (当心的) girl , she makes few mistakes in her homework.

— Mr. Hurst, could I join in your after-class activity from tomorrow on?

— Of course, Jenney. You can come every Tuesday and Friday afternoon.

正常人的心脏的四个腔中，流动着动脉血的两个腔是（    ）