题目内容：

Don't interrupt him.He __ to the weather forecast.A.listens B.is listening
C.has listened D.has been listening

优质解答

选B is listening 因为前面一句：Don't interrupt him.可知这事是正在发生,所以用正在进行时
Don't interrupt him.He is listening to the weather forecast.
翻译：
不要打断他.他正在听天气预报.

追问：

Subway Line5 ___.A.is now constructing B.is constructed now C.is now being constructed D.has now been constructing