______alittleearlier,Iwouldhavecaughtthetrain.
A、DidIleaveC
本题考查的是 if 引导的虚拟条件句，省略了 if 要把 had 提前。
Pleasewriteareport________theabovesubjectsaretobecovered.
______thenewplancanbecarriedoutwillbediscussedatthemeetingtomorrow.
_______hegoes,shewillgo,andshenevercares_______happens.
Touristexpenditureshavedifferenteffectsonadestinationeconomy:salesbyfoodvendorstorestaurantsare_______effect;whiletaxifaresandairlineticketsalesare_______effect.
Shewas________beunabletospeak
