I ___have written to him because he phoned me shortly afterwards.
I am going to do all I can _____ the bad impression you have of me.
The company was willing to provide us with what we needed, _____ made us excited.
_____ the doctors really doubt is _____ my mother will recover from the serious disease soon.
The students of the music school study ____.
I’d like to have this rope ____ that wire.