Put the verbs in brackets into the correct tense. a)how long )english? b)how ) your friend? c)i love tennis i _ (play) tennis since i was 10. d)this crossword is difficult. i ) it for 40 minutes. e)your english is good. how long ) 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?