If it is convenient ____you , I want to ask you to help me repair the roof of the kitchen. on Friday .A. to B. for C. with D at
Everybody in our class admires Lily, for she has a __________ for playing the piano.
_________ you’ve got a good chance, you should make full use of it.
_________ is known to us all is that 2012 Olympic Games will take place in London.
If weather ________, we’ll go cutting.
The place ____________ the bridge is supposed to be built should be _______ the cross –river traffic is the heaviest.