61. If you have to plough the field anyway, you _____ as well plant crops at the same time.
If nothing __________,the oceans will turn into fish deserts.
There __________ a small quantity of water left in the bottle and there are __________ apples in the basket.
You can not use the machine today because some parts __________ this week.
Many of us love traveling, but lack of financial __________ often holds us back from seeing the world.
__________ the website of the Fire Department in your city, and you will learn a lot about firefighting.