Put the verbs in brackets into the correct tense.
a)How long _____you_____(learn)English?
b)How long____you____(know) your friend?
c)I love tennis I ____ _ (play) tennis since I was 10.
d)This crossword is difficult. I ____(do) it for 40 minutes.
e)Your English is good. How long ___you___(learn) it?

a) How long have you been learning English?b) How long have you know your friend?c) I love tennis I have been playing tennis since I was 10. d) This crossword is difficult. I have been doing it for 40 minutes. e) Your English is good. How long have you been learning it?