–Have you finished your experiment report, Jane?--Oh, my god! I’ve _______ forgotten all about that.

Nearly 200 people entered the area ______ to mine diamonds in 2000, and eventually had to be driven off by the police. 

The second-hand car David bought the other day is as good as new; ______ it is in excellent condition.

33. The employees have not been paid _______ since the new manager took over this company last month.

--Students should devote most of their time to studying rather than playing computer games.  ---________. No pains, no gains.