Mum, I failed to catch the train. – If you __________ at the station ten minutes earlier, you could have caught it.

The poor child was ______ by his grandmother after his parents died.

She _____ the book sometime in the past as there is no way she could have answered the questions so accurately.

下列字母中全部是元音字母的是__________.

in the Middle East, Jordan holds a keystrategic position, _______ both Israel and Iraq