1 . 众所周知, 无论电脑如何普及, 有些工作得由人工完成。这就是电脑不能完全取代人的原因。
________, ________ popular computers are, some work must be done by hand. ________ computers can’t completely replace human beings.

2 . 青少年轻微超重是正常的，没有理由为此焦虑。然而，如果超重到达到危险程度，新尝试以适当方式减重很重要。
It is normal for teenagers to be slightly overweight and there is no reason ________ they should be worried. However, for those ________ are dangerously overweight, it is very important that they try to lose weight properly.