He spent too much time talking on ______ phone while we were all busy at _____ work. A. the, 不填 B. a, 不填 C. 不填, 不填
—Where is our English teacher? —She is in the classroom, _____ the exercises _________ the students have done at home.
To get an education, _______.
Tom does speak Chinese well, but his reading and writing skills leave much _______.
That gas pipeline project, in July 2002 and in 2005, will be China’s longest gas pipeline in history.
We saw new houses wherever we went on our visit.