Can, Could, Be able to Bài học này chúng ta sẽ ôn lại hai động từ khuyết thiếu và ‘be able to’, chúng đều có chức năng như nhau. Can Được dùng nói về có thể. ‘Can you meet me at 5?’ Được dùng để nói về khả năng. ‘I can ride a bike’. Được dùng cho đề nghị hay yêu cầu không trang trọng. ‘Can you bring me my jumper?’ Dạng phủ định can’t và cannot. Could Được dùng nói về khả năng trong quá khứ. ‘When I was a child I could do handstands’. Được dùng cho đề nghị trang trọng. ‘Could you fax me that document by Tuesday?’ Dạng phủ định: couldn’t. Be able to Đôi khi dùng thay can và could Có thể được dùng với tất cả các thì. ‘I will be able to see you next week’. Được dùng để nói về khả năng ‘Are you able to write formal letters?’ Bây giờ chúng ta thử làm một bài cơ bản xem bạn có thể làm đúng được bao nhiêu câu. • 1. ___ you hear the fireworks from your house last night? Could Can't Can • 2. Do you think you ___ write that report by Tuesday? I know you’re very busy. will be able to have been able to couldn't • 3. I ___ touch my toes. See! can will be able to could • 4. I ___ spend another moment in that restaurant. It was too noisy. couldn't can't have been able to • 5. I ___ never seem to get the temperature right. can't to be able to can • 6. ___ play professional tennis, you must be extremely fit. To be able to Will you be able to Couldn’t • 7. ___ you play an instrument? Couldn't Able to Can • 8. I'm afraid I ___ attend the meeting, I’m on business in Japan. will be able to won’t be able to can • 9. ___ you have brought it to me at work? Couldn't Cannot Will be able to • 10. They ___ save the men from the sinking ship. was able to could to were able to . been able to • 5. I ___ never seem to get the temperature right. can't to be able to can • 6. ___ play professional tennis, you must be extremely fit. To be able to Will you be. busy. will be able to have been able to couldn't • 3. I ___ touch my toes. See! can will be able to could • 4. I ___ spend another moment in that restaurant. It was too noisy. . able to can • 9. ___ you have brought it to me at work? Couldn't Cannot Will be able to • 10. They ___ save the men from the sinking ship. was able to could to were able to