Absolutely.是这样；当然是；正是如此；绝对如此.
Absolutely impossible!绝对不可能的!
All I have to do is learn English.我所要做的就是学英语.
Are you free tomorrow?你明天有空吗?
Are you married?你结婚了吗?
Are you used to the food here?你习惯吃这儿的饭菜吗?
Be careful.小心、注意.
Be my guest.请便、别客气.
Better late than never.迟到总比不做好.
Better luck next time.祝你下一次好运.
Better safe than sorry.小心不出大错.
Can I have a day off?我能请一天假吗?
Can I help?要我帮忙吗?
Can I take a message?要我传话吗?
Can I take a rain check?你能改天再请我吗?
Can I take your order?您要点菜吗?
Can you give me a wake-up call?你能打电话叫醒我吗?
Can you give me some feedback?你能给我一些建议吗?
Can you make it?你能来吗?
Can I have a word with you?我能跟你谈一谈吗?
Catch me later.过会儿再来找我.
Cheer up!高兴起来!振作起来!
Come in and make yourself at home.请进,别客户.
Could I have the bill,please?请把账单给我好吗?
Could you drop me off at the airport?你能载我到飞机场吗?
Could you speak slower?你能说得慢一点
Could you take a picture for me?你能帮我拍照吗?
（from CityEnglish)