If the engineer (come) ____here yesterday, the problem would have been solved.(201006)
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In China, it is quite (nature) ____for people to go back home for the Spring Festival.(201006)
The manager was surprised at the news when he (receive) ____, the phone call yesterday.(201006)
Advances in medical technology have made it possible for people (live) ____longer.(201006)
Could you tell me the (different) ____between American and British English in business writing?(201012)