Mr. Black asks the kids ________ in the river, because it’s too dangerous.
At present , many people would rather ___________ in the country because there is ____________pollution in the city .
There are many colors . I can’t decide ________________ .
Spending some time on our hobbies can help us _____________and make our lives ________________.
_____________of his parents is in good health, but______ of them work hard.
–---Mum, can I have _________ to eat? I’m hungry.-----Sorry, there is ______in the fridge. You can go downstairs to buy _____.