Viết lại câu có nghĩa tương tự:
1. We were just about to leave for the airport when hearing about the explosion. (point)
->We were…………………….. for the airport when hearing about the explosion.
2. We should use gasoline sparingly. (economize)
-> We ……………………………………… gasoline.
=>
1. We were on the point of leaving for the airport when hearing about the explosion. ( be about to = be on the point of Ving : sắp làm gì)
2. We should economize on gasoline. (economize on sth : tiết kiệm)
`1`. We were just about to leave for the airport when hearing about the explosion. (point)
->We were at the point of leaving for the airport when hearing about the explosion.
*be on/at the point of: sắp sửa, trên bờ vực
Dịch: Chúng tôi vừa chuẩn bị rời sân bay thì nghe tin về vụ nổ.
`2`. We should use gasoline sparingly. (economize)
-> We should econmize when we use gasoline.
economize (v): tiết kiệm
Dịch: Chúng ta nên tiết chế khi sử dụng xăng.