| “迎奥运，我为先”联欢会上，班长准备了若干张相同的卡片，上面写的是联欢会上同学们要回答的问题，联欢会开始后，班长问小明：你能设计一个方案，估计联欢会共准备了多少张卡片？小明用20张空白卡片（与写有问题的卡片相同），和全部写有问题的卡片洗匀，从中随机抽取10张，发现有2张空白卡片，马上正确估计出了写有问题卡片的数目，小明估计的数目是（ ） |
| A．60张 B．80张 C．90张 D．110张 |
答案：B
| 选用所给词或词组的正确形式完成句子 | |
2．Do you like ________ a little longer in the morning? 3．Where ________ your uncle ________ ? In Beijing 4．He ________ on his jacket and goes to work. 5．Can you ________ a little Chinese? Yes, I can. 6．Which bus shall I ________? 7．What time ________ you ________ lunch? 8．________ me what his job is. 9．He ________ to the bus stop very late. The bus leaves. 10．________ at the clock. It’s time to go home. |