The most interesting thing to the small boy was _______ he got close to the door, it would open of itself.
He stepped into the dark cave, _______ high above his head.
In our school, every student had free _______ to the library.
—Which do you prefer_______, English or Japanese? —English, I think.
The chemistry teacher demanded that the laboratory report _______ immediately after the experiment was done.
On the chairs_______, who had come to Sanming looking for jobs.