我国的()运输是随着石油生产的发展而发展起来的。

Only then ______the importance of my health.

The students in the class were _____four groups before they started the game.

He’s got himself into a dangerous situation he is likely to be accused of meeting someone.

Along with the letter was his promise _____he would visit me this coming Christmas.

Tom kept quiet about the accident ________ lose his job.

With my money ______, I went back home.

----I _____to go for a walk.

---But I_____ going shopping.

He lost his way in the forest, but he managed to get through it______.

After living there for one year, they have________there.