We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
It is very difficult to _____ the meaning of a word without a context.
How much is the round-way _____ by air from Beijing to Nanjing?
It was because of his carelessness _____ he didn’t pass the entrance exam.
We were disappointed _____ that the match had been cancelled.
—What was the party like?—It was years _____ I enjoyed myself so much.