Complete the questions by putting verbs in brackets into the present perfect continuous form of the verb. a) how long omar ( play) dombra ? b) how long asel ( sing)? c) how long dmitry watch tv d) how long jennifer and asel ) on the phone? ,

a) How long has Omar been playing dombra ?
b) How long has Asel been singing?
c) How long has Dmitry been watching TV?
d) How long have Jennifer and Asel been talking on the phone?

A) How long __has_ Omar been__playing dombra ?
b) How long _has Asel been singing?
c) How long _has_ Dmitry been _ watching TV
d) How long _have_ Jennifer and Asel _been talking on the phone?