He‘s working hard_____.
B
forfear(that)“惟恐,以免”,引导的从句用虚拟语气should+动词原形,should可省略。lest意思及用法类似。
Itwasnotuntilshehadfinishedallherwork_____.
Ifhe_____thestorekeeper‘sscissors,hewouldhaveforgottentobuyapair.
_____youunderstandthisrule,you‘llhavenodifficultyindealingwithsuchproblems.
Beingextremely_____tothecold,Idonotlikeskating.
Thosepeople_____ageneralunderstandingofthepresentsituation.