There came a point in his life____ he had to thinkabout seriously about his future.

Fifty kilometres is not a long forpeople who have a car.

When did the new Wenfeng Shopping Mall open—It ________ for nearly half a year.

We will see even stronger China in near future .

It was only after he had read the papers ________ Mr.Gross realized the task before him was extremely difficult to complete. (2013·大纲全国，30)