Now it’s been possible for us to be taken into “space”,     we can experience weightlessness for a short time.

The answer is connected with the main use ______ the body makes of food— to supply the energy for movement.

___________ has always been expected, he has finally achieved his dream, ________ makes his parents so proud.

We were swimming in the lake         suddenly the storm started.

“You can’t judge a book by its cover,” ________ .

They promised to develop a software package by the end of this year, ________ they might have.

One can always manage to do more things，no matter      full one’s schedule is in life.

I have heard a lot good things about you _______ I came back from abroad.

In the global economy, a new drug for cancer, ______ it is discovered, will create many economic possibilities around the world.

_________I have to give a speech, I get extremely nervous before I start.