Is this _____computer game? — Yes, ___is ____computer game.

Einstein,thefamousscientist,wasborn_______March,1879.[ ]

Will you take D5581 or G7619 to Hangzhou? — G7619. I will have to more money, but it will much less time.

Boys, don’t lose____ in playing Angry Birds. It is bad for your eyes to play computer games for a long time

Simon is willing to help others __________ with their English.[ ]