1.A）George sprinkled lots of salt on potato chips.
B）_A_ _lot_ _of_ salt _was_ sprinkled on potato chips by George.
2.A）The writing paper was still there yesterday evening.
B）The writing paper _had_ _gone_ yesterday evening.
3.A）Basketball was invented by a Canadian doctor named James Naismith.
B）A Canadian doctor _whose_ _name_ was James Naismith _invented_ basketball.
仅供参考~