_____in the queue for half an hour, the old man suddenly realized he had left the purse in the office.
It was unwise of him to _________ the unreliable data in his speech.
-- I’m so sorry for breaking the plate, Mom. -- It doesn’t matter._________ careful next time.
-- _________ you called yesterday? -- Tom.Why?
All things _________, her suggestion is of greater value than yours.
More than one student in our class _________ to Shanghai Expo.