To our ______ , Frank’s illness proved not to be as serious as we had feared.
Not until liberation _ he __free.
Shanghai is larger than __ in China.
They are in high spirits.They ___ have been defeated in the game.
Much of his spare time __ learning how to fix radios.
All the teacher taught at the last lesson seemed easy __. A, to be understood B. to understand C. being understood D. understanding