_____is hard to understand the english words.A.It B.That C.Why D.This

_____is hard to understand the english words.A.It B.That C.Why D.This i even have to go to the dentist ___my shelf._____is really hard for me1.on by with for2.that it this he 这里的however是什么意思It's hard（easy） for me to decide whom I will choose,however,because（though） two students,Donald and Brian,got the same grade,为什么不能用括号里的原文Donald was not very good at math.He could not unde 7．_____is the best time to go to Canada? if you want to go,starting today do not have to appear in front of me,unde _____ _____is it?it's9:30pm.Time to sleep _____is your school trip to London?It's great 英汉翻译hard-to-achieve Hard to Breathe 歌词 it's hard to to work hard中文 It hard to it hard to say try hard to RT it aidnot hard to push hard to how to study hard? hard to starboard是什么意思