You ______get this book free if you can tell me the name of the writer.
_______ food have been sent to the disaster area to help the people who lost their homes.
.Could it be in the room _____ we had a talk last night ___you left your key?
_______ around the Water Cube, we were then taken to see the Bird’s Nest.
There are _______ approaches to English teaching. But not all of them are equally efficient for our Chinese students.
.After Wenchuan earthquake, the unaffected provinces ______ skilled builders to the quake-hit areas quickly.