----- Nội dung dịch tự động từ ảnh ----- Exercise 4A Rewrite the sentences. Replace the underlined words with phrases with can / can't. 1 You are not allowed to have your mobile phone switched on. You can't have your mo. 2 You have to register before it's possible to use the site. 3 I'm afraid it isn't possible for her to speak to you at the moment. 4 It's OK to use my computer if you want to.
