The boy looks pale and thin. He _____ ill.
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.