A． stoppedB． beganC． goneD． changed

A． stoppedB． meantC． desiredD． happened

A．stoppedB．droppedC．roseD．ran

A．stoppedB．createdC．calledD．mentioned

【C19】A．stoppedB．sharedC．wonD．exchanged

Not until it was completely dark______working.A．had they stoppedB．they stoppedC．they didn"

Its high time we ______ cutting down the rainforests.[2006]A．stoppedB．had to stopC．shall s