_______ have you known the city? For five years.
Jane looks unhappy all day today. _____ seems that she knows the bad news.
— did you tell her about the news? — By an e-mail.
--I can’t solve the math problem because it is too difficult. What should I do? -- _________ ask the teacher for help?
I really ________ Tina, we haven’t seen each other for about three years.
Sometimes we can hardly understand foreigners because they speak too _______.