We can never be too careful with our work. We must try our best mistakes.

The experts along with the head teacher _____ discusssing JK Rowling’s works that _______ popular among students.

The harder you ______, the greater progress you ______. [ ]

You, who ______ his good friend, should help him get out of trouble.

Where are you going for your winter vocation– We _______ go to Hainan, but we are not sure.