When our ancestors were hunters and gatherers 10,000 years ago, they didn’t have time to wonder much about ________ but finding food.
When it comes to reducing stress, enough sleep and physical exercise can help, .
—Why did you leave without a word of warning to John?—But what otherwise? He never listens to me.
I think your health will soon if you do regular exercise.
—Excuse me, but could you please turn the radio down?—Sorry, I you could hear it.
With some technical problems to be solved, it may be a while the system is put into use.