— May I use your pen? Mine is broken.— Of course, here are two and you can use ________ of them.
You’d better water the flower in order to keep it __________.
Nowadays students have __________ homework to do every day.
Prince William __________the students playing football when he visited Shanghai.
You can’t take the two tickets, but you may take ____ of them.
A new teacher will come to teach _________ chemistry next term.