My trousers ________ very dirty. I washed them. A. were B. is C. was
我有一本书。
选出恰当的的答语,并将其字母代号填入问句前的括号里
Mei mei : This is my new desk. Chen Jie:
Lucy : How many lights are there in the classroom. Lily :
Sarah : Where is my seat? Mary: