—Is this your jacket, Xiao Li?—No, perhaps someone ______ it behind when the meeting was held.
English is understood all over the world ______ Turkish is spoken by only a few people outside Turkey itself.
---Did you hear the quarrel just now? ---________ I did.
She remains optimistic (乐观的) in spite of so much hardship she has _______ .
Doing morning exercises _______ our health and we _______ it.
I won’t have anything like that _______ in my class .