how will you do it ?
i'll work hard ,no matter which( )i meet
a difficulty b trouble c problem d challenge
it's much better for people to be laughing at you than( )angry
a being b be c to be
参考答案:1.b 因为其余三项都是可数名词,应当用作复数
2.b 因为than后面的不定式to应省略
i'll work hard ,no matter which( )i meet
a difficulty b trouble c problem d challenge
it's much better for people to be laughing at you than( )angry
a being b be c to be
参考答案:1.b 因为其余三项都是可数名词,应当用作复数
2.b 因为than后面的不定式to应省略