51.　　 He went on _______ (read) after a short rest.

50.　　 I ______ (see) you _________ (play) basketball with your classmates on the playground last Sunday.

49.　　 I saw you _______ (pick) an apple just now.

48.　　 The students stopped _______ (talk) when the teacher came in.

47.　　 He stopped ______ (talk) with Mary when she met her in the street.

46.　　 Remember ________ (bring) me some money. I’ve run out of it.

45.　　 I remembered _______ (return) your money. Why do ask for it again?

44.　　 I forgot _______ (turn) off the lights. Could you go back and shut the off?

43.　　 I forgot ______ (turn) off the lights. Look, it is dark in the room.

42.　　 Where else ______ you _______(be) recently?