--- Who’s the man giving the speech?--- Well, if you ____ know, his name is Lyric.
Both of my parents insisted _______ a computer for me, but I don’t think it is necessary.
Not only should you get used ______ under difficult conditions but you also you pay more attention ______ your work well.
Once your business becomes international, _____ constantly will be part of your life.
Remind me _______ the medicine tomorrow.
The silence of the library was sometimes broken by an occasional coughorby the sound of pages _______.