You can take ____ you like here.

It is said that his carelessness ____ the terrible accident.

Tom as well as his friends ____ to visit our school soon after they arrive in Changsha.

By the time you ____ in, I ____ two letters.

To ____ your dream of becoming a scientist, you must work hard from now on.

I ____ go to bed ____ the telephone rang.

You may ask the teacher for help ____ difficulty.

The train ____ at present speed until it reaches Beijing.

Before becoming a pilot, he spent quite a long time ____.

Yang Liwei’s journey into ____ space took him 600,000 kilometres in ____ orbit, around the earth 14 times, in just over 21 hours.