You’d better leave things ________ if you don ’t know how to deal with them
A、offC
A.离开，离去;B不在里面，出局;C单独的(地);D完结，翻倒，越过
Heboughtahouseforhischildren________
Importswillbeallowedinproportion_______exports.
Thetrafficwasheldupformorethanthirtyminutes,________causedmetoarrivelate.
Thechallengeisnotoneofexpansion._______,therapidgrowthinenrollmentoverthelast40yearshascometoanend.
_______atallisworthdoingwell.
