was talking with my monitor when a fight ________between the students of the two classes.[ ]

oft ended support for Windows XP after April 8, which _______a major operating system for some Chinese computer users, and advised users to upgrade to Windows 8.1.

He likes to make a list of ______ she wants to buy before shopping.

Foreign visitors will get lost easily in new Taixing ________ they have a map.

I haven’t finished my work ________.