One-child policy has ______ controlling China’s population.A. did well in B. worked well in. C. worked good in
The life we were used to ______ greatly since 1980.
_______useful the information he gave us is !
-----Do you know _____ this teddy bear belongs to? -----Let me see. Oh, it’s _____.
Where is my ________other sock? I can’t find it.
Excuse me. Could you tell me ______?