I’m afraid our personal relationships__________over years may be lost after you move out.
Could I speak to__________ is in charge of International Sales ,please?
The traditional view is ______ we sleep because our brain is “programmed” to make us do so.
______ he referred to in his article was unknown to the general reader.
____ matters most in learning English is enough practice.
I just wonder __________ that makes him so excited.