He _____ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.
-----How dangerous it was ! -----Yes, but for the young man’s quick action, herun over by the car.
Chemical pollution will bring about a threat to agriculture and food chain, and to human health.
By the year of 2053 there will be 487 million aged people in China,means that one third of the population will be over 60.
It is hoped that one day all the wild animals shut up in the cages will be set free to nature and live happily inwild.
Don’t be discouraged. ____things as they are and you will enjoy every day of your life.