Question

6．所有座位都坐滿了人，我們只好站著觀看演出．（oblige）All the seats were occupied/taken up，so we were obliged to stand to watch the performance．．

Answer 1

分析 All the seats were occupied/taken up，so we were obliged to stand to watch the performance．

解答 All the seats were occupied/taken up，so we were obliged to stand to watch the performance．
本句是對過去行為的一種描述，根據句意"都坐滿了人，我們只好站著"可知，用一般過去時．
本句為主從復合句，后面為so引導的結果狀語從句，to watch the performance為不定式作目的狀語．be occupied/taken up被占用，被占據；be obliged to do sth被迫做，不得不做．

點評 本句中be obliged to do sth的常用表達為have to do sth；要比have to do sth更形象、生動貼切．
 I felt obliged to leave after such an unpleasant quarrel．發(fā)生了這樣不愉快的爭吵之后，我覺得有必要離開．
They were obliged to sell their house in order to pay their debts．他們被迫賣房還債．