—I think Jeff can. A. shouldB. would C. must D. can 6.—Can you and Tom draw? —___. A. Yes, I can B. No, he can't C. Yes, we can't D. No, we can't 7.—Can Jack dance? —___. But he wa...
A Using can, could and may A 使 can, could may1. We use can or could to talk about ability.1. 我们使用 can或 could谈论能力。 我们We use can to talk about present ability and使用 can谈论现在的能力,用 could 谈论use could to talk about ability in the past.过去的能力。Millie can ...
-Could / Can/ I use your pen?我可以用你的钢笔吗? -Yes, of course you can. 当然可以。(注意:此处不用Yes, you could.) (2) 对于过去的“许可”,常表示过去一般性允许(表示某人随时都可以做某事),用can的过去式(即could)。如: When I lived at hom...
在表示能力时： can 主要用于表示现在或将来的实际能力。例如，“My sister can drive.”这里展现的是她现在的驾驶技能。 could 则更多地用于表示过去的一般性能力或询问过去的能力。例如，“Could you speak English then?”这里是在询问对方过去是否具备某种能力。在表示许可时： can 通常用于现在或未来...
Learning the difference between "can" vs. "could" and when to use each one couldn't get any easier! Just read our guide on these commonly confused words.
Can I use your pen?我可以用你的钢笔吗? 4. 表示惊异、不相信等(用于疑问句、否定句或感叹句中),意思是:会,可能。如: This can't be true. 这不可能是真的。 Can it be true?这可能是真的吗? 二、情态动词could的用法 1. 表示“能力”或“可能性”,作为can的过去形式。如: Could you speak Eng...
一、表示允许的用法 表示现在的允许时,若是请求别人允许自己做某事,两者均可用,但用 could 语气更 委婉;若是自己允许别人做某事,一般只用 can,而不用 could。如: Can [Could] I come in? 我可以进来吗? “Could [Can] I use your pen ? ”“Yes , of course ...
“Could [Can] I use your pen? ” “Yes, of course you can.” “我可以借用你的钢笔吗?”“当然可以。”(不能说Yes, you could.)(2) 对于过去的“许可”，也要区分以下两种情况：① 表示过去一般性允许(即表示某人随时都可以做某事)，用can的过去式could： When I lived at home, I ...
I can help you tomorrow. (future) ‘Can’ is also used for requests and orders. When we use ‘can’ in a question to ask someone to do something. It is not a kind of real question because we do not really want to know if the person is able to do that work but we want them ...
— Can I go now? — Yes, you can. 注意:①could也可表示请求,语气委婉,主要用于疑问句,不可用于肯定句,答语应用can(即could不能用于现在时态的简略答语中)。如: Could I come to see you tomorrow? Yes, you can. (否定答语可用No, I'm afraid not.)②can表示能力时,还可用be able to代替。如...