题目内容：

1when things are in harmony,they are in__
Aneed Btrouble Csurprise Dagerrment
2a group of students was hiking__one of them broke his leg.the teacher went down into the village for help
Abecause Bthough Csince Dwhen
3i don't know____with this problem,ie is too hard
Awhich to do Bwhat to do Cwhen to do Dhow to do

优质解答

1when things are in harmony,they are in_D_Aneed Btrouble Csurprise Dagerrment2a group of students was hiking_A_one of them broke his leg.the teacher went down into the village for helpAbecause Bthough...