It’s important _________ us _________ _English well.

下面语句在提示的语言环境中表达得体的一项是（ ）

The car factory has produced a new car ofhigh quality; its only is thatit uses a lot of petrol

Have you heard of the terrorist attack at Tian’anmen Square in which 5 people were killed and 40 injured—Yes, ______ news came as ______ great shock to me.

______ that he couldnot speak for a long time