____ you were busy, I wouldn’t have bothered you with questions.
A、IfIrealizedB
暂无解析
Even if his letter____tomorrow ， it____too late to do anything.
Toobtainasatisfactoryresult，onemustapplytwo（）ofpaintonacleansurface.
Ifasubstanceisdissolvedinwaterorheated，itmay（）agas.
John's score on the test is the highest in the class ; （）he last night.
AlthoughSPanish，heattendedthecourse.
