Food safety is ________ important, so our government spares no efforts to prevent food being polluted.
After I arrived at her house, she showed me into ____________.
The workers are so _____ to the noise of the machine that they don’t even notice it during their work.
It is not for me to return all the books to the library now because I still need them.
I think Zheng Jie is _______ a rising tennis star. She has put China on the tennis map.
—Why couldn’t they meet us at five o’clock? —Because they were delayed by _________.