J) I don’t know why he hasn’t called me back. He ………………..
A. might have forgetting my number
B. might forget my number
C. must have forgot my number
D. might have forgotten my number [1]
Answer:D
J) I don’t know why he hasn’t called me back. He ………………..
A. might have forgetting my number B. might forget my number C. must have forgot my number D. might have forgotten my number [1]