The article more attention to the problem of culture interference in foreign language teaching and learning A: calls for B: calls off C: calls in D: call up

– Can I do the job? --- I’m afraid not, because it _______skill and patience. A: calls on B: calls out C: calls up D: calls for

Sally occasionally calls her grandmother.Sally_________ calls her grandmother.

The author was surprised to hear the calls to prayer because ______. A: he was far away from the city, yet he could hear them clearly B: he did not think there would be any calls C: the calls came from the mosques D: the calls were no different over loud-speakers

Which one of the following statements is right? A: Function definitions can be nested, but function calls cannot be nested. B: Function definitions cannot be nested, but function calls can be nested. C: Both function definitions and function calls cannot be nested. D: Both function definitions and function calls can be nested.