按要求,写单词。
rat(复数)____
Jane was shy. She would not invite her classmates____speaking English.
标志着法国大革命结束的事件是( )
计算: 2−1−|−2|+(2017−π)0−2cos60°
含羞草的叶子被碰后会合拢,这说明生物具有( )