A.the train had started B.the train had been started C.had the train started D.did the train start
单项选择题There are so many restaurants along the street that I'm not sure which one ().
A.to be eating at B.to eat at C.eating at D.for eating at
单项选择题I walked too much yesterday and () are still aching now.
A.my leg musclesB.my leg's musclesC.my muscles of legD.my muscles of the leg