-Can those___ at the back of the classroom hear me?-No problem [ ]

Bob, why do you stay silent? Can you tell me the answer?— I’m sorry, Mr. Green. Your question is very difficult ________.[ ]

In many countries packets of cigarettes come with a government health warning ________them. [ ]

Chemical pollution will bring about a threat toagriculture and food chain, and ________ to human health.

Most women in our company always the latest fashions.