阅读理解。 Jack is the name of a game that is quite popular with children. To play jack, you'll need a small rubber ball ten small metal objects: jacks. The rules for this game are very simple. To begin, you put the ten jacks on the floor or ground in front of you. Throw the ball up, pick up one jack and then catch the ball. Keep the jack in your hand and then continue to pick up the other jacks one at a time. You lose your turn if you do not catch the ball, or if you do not pick up a jack or you drop any jacks from your hands. When you finish all ten jacks, you now try to do the same thing again but with two jacks at a time. This is more difficult, of course. You will lose your turn if you do not pick up exactly two jacks or if you make any of the other mistakes. 1. To pick up a jack, you have to _____. A. throw one of the jacks first B. throw the first jack you've caught C. throw the rubber ball into the air first D. catch the falling ball first 2. How many times will you pick up jacks when you play with two jacks at a time without making any mistakes to win the game? A. 5 B 3 C. 4 D. 6 3. Which of the following is true? A. The name of a jack is very popular with children B .The children like the game only for its simple rules. C. You always do the same thing when you finish all ten jacks. D. You have to pick up one jack as fast as possible before you catch the ball