—Can you give me the right answer? —Sorry, I ________. Would you repeat that question?
I looked under ______ bed and found _____ book I lost last week.
--- How long are you staying? --- I don’t know. _____.
It is reported that large amounts of locusts(蝗虫) _____ in their activity in the north now.
The actor pretends to be a fierce, bold man, but _____ he is timid and shy.
_____ makes that teacher famous is _____ over 92% of his students have been admitted to the state universities.