- It’s a simple question, isn’t it?- Yeah, but the answer is ______ easy.
—May I watch TV for another 15 minutes, Mum? —Oh, dear, if you _____.
The entire hall burst into a great cheer and applause _______ the Nobel Prize winner appeared on the stage accompanied by the chairman.
John has determined to _______ teaching in the quake-hit area when he graduates from university.
------You’ve left the light on. ------Oh, so I have. _____________to turn it off.
--How did she get infected? --She ________the virus without any protection.