She took her son, ran out of the house, and ______ him in the car, drove quickly to the nearest doctor’s office.
---- Occasions are rare _____ I can spend a day with my daughter. ---- You should spare some time to accompany her.
I will never understand how it ______ that you failed in the examination for you are such a good student.
----Do you have any idea why Mark is leaving? ---- No. In fact, everyone is ________about it.
--- Have you heard that Jenny, along with her classmates, to Harbin for the winter vacation? --- Really? No wonder I haven’t seen her these days.
In order to remove poverty, the World Bank has switched its ____ to providing assistance to developing countries.