I try to understand __________ that prevents so many Chinese from being as happy as one might expect.
The retired man donated most of his savings to the school damaged by the earthquake in Yushu,__________ the students to return to their classrooms.
We had to wait half an hour __________ we had al-ready booked a table.
Our English teacher suggests that we should __________ the dictionary every time we come across a new word while reading.
—Hello, JinlingHotel. What can I do for you? —Do you have a room __________ for this weekend?
When I went to the lake, my father was__________ fishing.