—Tom was absent today,wasn’t he?—No,he wasn’t.He was just late,because he ________ his bus.

 When you learn English, you have to choose which accent to _____, American or British.

Sam_______ some knowledge of the computer just by watching others working on it..

The boy you lent the pen to _____ it. 

They have been waiting for many hours to see the singer, but the airplane must have been _____.