English Language (Use of English) Past Questions and Answers

In the question below fill the gap with the appropriate option :
we are .... to receive your letter and to know that you are ....

In the question below fill the gap with the appropriate option :
People who live by .... what loneliness is like

In the question below fill the gap with the appropriate option :
It has been confirmed that the election .... held in July

In the question below fill the gap with the appropriate option :
The choice to go to the university or not is ....

In the question below select the option (A-D) that best explains the information conveyed in the sentence:
People may not pick flower in this park