Написать 5 предложений на презент перфект континиус и презент перфект

I have been reading for two hours She has been helping her mother abouta house He has been running for half an hour Ben has been doing his homework all this time They have been building this house since last year   I have just drawn the picture Have you ever seen this film? My sister has never been here Has he had lunch yet? Ann has lost her key  

1. I  have been writing this letter since 2 o'clock. 2 Nick has been doing this work for 5 hours. 3I have already  read thi book. 4 The boy hasn't drawn the picture of Moscow yet. 5 Ann has never been to London