1) They ............................... bus for three hours. a) are waiting b) have been waiting c) wait d) has been waiting 2) She..............................in her office since 2006. a) have been working b) works c) has been working d) is working 3) John...................... here since 2005. a) live b) lives c) have been living d) has been living 4) My sister ................ phone for hours. a) is talking b) talks c) has been talking d) have been talking 5) Jack...............since this morning a) have been cooking b) cooks c) is cooking d) has been cooking 6) We.................. game since three hours. a) are playing b) have been playing c) plays d) has been played 7) Anna and Susie ...................their houses since this morning. a) have been cleaning b) clean c) has been cleaning d) cleans 8) They.....................since last september. a) are travelling b) travels c) have been travelling d) has been travelling 9) I ...............since last hour. a) has been running b) is running c) have been running d) run 10) เขาอ่านหนังสือมาตั้งแต่สองชั่วโมงแล้ว a) He has been reading a book since two hours. b) He is reading a book for two hours. c) He reads a book since two hours. d) He have been reading a book for two hours.

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