— May I use your pen? Mine is broken.— Of course, here are two and you can use ________ of them.

Everyone knows that Canada is the second largest country in the world, larger than _____ country in Asia.

 Everyone working on Sunday will have _____ pay doubled.

---What kind of people do you need for the position? --- __________ with a good command of English.

 The scientists have made _______ possible for us to communicate with each other more easily.