For the following questions answer them individually
Select the option that expresses the given sentence in active voice.
The lock has not yet been repaired by the locksmith.
Select the most appropriate option to substitute the underline segment in the given sentence.
If we do nothing to curb this pollution, I guarantee we will face the wall in the future.
Select the most appropriate option to fill in the blank.
Everyone knows that the future of all life on earth will be _________ if people don’t control the contamination of the environment.
Select the option that will improve the underlined part of the given sentence.
Do you mind me to being here while you are working?