Những phần ........................ là đề bài thì mik chỉ vt kết quả thui
17........................have you known-have known-did he do/came/was.
18........................haven't seen/hasn't been/bought.
19.........................has the plumber been-has stayed-did he do/turned/emptied.
20.........................were-was/Did you enjoy-took-Did you win/came.
21.........................How long have the horrible monument been/has been-wrote-has been.
22.........................have just been/Have you seen/haven't-didn't read-read/did Tolstoy write-wrote-Did he write.
23.........................brought/did he do/wanted.
24.........................were-was/Did he take-did/Has it hurt.
25.........................said/hasn't phoned.
26.........................have just received/didn't pay/Haven't I given/have-spent.
27.........................have you been/have just started/did you find-answered.
28.........................Have you finished/have done.
