龚自珍诗 "昨日相逢刘礼部，高言大居快无加。从此烧尽虫鱼书，甘作东京卖饼家。 "反映了他的学术转向 ()

The opposition leaders ________ the government for not taking action sooner.

1949年中华人民共和国的建立， 标志着中国从半殖民地半封建社会进入 _________。

She got a job as an assistant stage manager at the Cambridge Arts Festival Theatre, thinkingthat it might ________ to a career as a playwright ( 剧作家 ).

意大利人文主义者莱奥纳尔多·布鲁尼的代表作是 ()