Ifit______rainheavily,thecitywouldhavegreattroublebecauseofitspoordrainagesystem.
教师要充分利用现代教育技术，拓宽学生学习和运用英语的渠道。
TheEnglishlanguageteachingbusinesswillbecomethevictimofitsownsuccess,______maybeastonishingtoyou.
---Wouldyoulike_____tea?
---Yes,just_____.
Anadvertisementasawholemaybemisleadingthougheachsentenceseparatelyis______true.
