It is ______ ill health that she is now not so active in the movement.
Once out of the earth’s gravity, the astronaut is____by the problem of weightlessness.
The beauty of the place ______ them to pause in their hike and rest a while.
The spacewalk performed by Chinese astronaut Zhai Zhigang on Saturday afternoon _____a major breakthrough in China's space program
Some fruits ______ well in warm dry climates.
We are at your service. Don’t _____to turn to us if you have any further problems.