The policemen entered a lonely village near Nam Co Lake, ______ they believed the suspect(嫌疑犯) was hidden somewhere.
By the time he ____ at the party, all the other guests ____ playing games.
The English language ____ the grammar and vocabulary that people from many different countries and cultures brought to Britain.
Scientists observe ___ making the most of our senses when we are young can keep us healthy later on in life.
A lot of scientists believe that women’s sense of smell is better developed than ____ of men.
I heard it was going to become cloudy this afternoon, ____ by a storm.