在了解甲公司内部控制时，A注册会计师最应当关注的是()

A．内部控制是否按照管理层的意图，实现了经营效率

B．内部控制是否能够防止或发现并纠正错误或舞弊

C．内部控制是否明确区分控制要素

D．内部控制是否没有因串通而失效

用used to或一般现在时完成句子.

1. I                       play tennis. I stopped playing a few years ago.

2. Do you do any sport? Yes, I                       .

3. "Have you got a car?" "No, I __________ one but I sold it."

4. George __________ a waiter. Now he's the manager of a hotel.

5. "Do you go to work by car?" "Sometimes but most days I __________ by train."

6. When I was a child, I never __________ meat, but I eat it now.

7. Mary loves watching TV. She __________ TV every evening.

8. We __________ near the airport but we moved to the city centre a few years ago.

9. Normally I start work at 7 o'clock, so I __________ up very early.

10. What games __________ you __________ when you were a child?