1.stopped 2.back 3. reason 4 did 5.until 6.different 7 sent 8 longer 9 share 10 others
第4题是个者伏倒装。宽春比如，A I watched a film yesterday
B So did I
第8题no longer = not any more 题中的句子也可慎嫌耐以这样表达 I was happy because she was not sad any more.
在sadly前面加crying， ing形式作伴随状语