You can certainly leave the classroom as soon as your homework__________.

What do you think of the traffic in our city-lt’s than it used tobe, but there’s still a long way to go.

_ difficult and challenging the task may be, wemust finish it on time, because there is a possibility _______our work will godown in history.

He was seriously hurt after that accident, but now he was recovered from it. Which of the following can take the place of the underlined word?[ ]

It’s common for us to have smart phones today. They _ in our daily life.