he ______ come hack to china ____ he learns english well .A.doesn't ; until B.doesn't ; after C.won't ;when D.won't ; until
问题描述:
he ______ come hack to china ____ he learns english well .
A.doesn't ; until B.doesn't ; after
C.won't ;when D.won't ; until
答
选D,他不会回中国直到学好英语