.-Hello,Anne,it’s Jack here Can I speak to Robert,please?-Hi,Jack.Robert_______in the garage,Can I get him to call you back?-Sure.Thanks. A.has worked B.is working C.worked D will work
I ______ sooner but I didn’ t know that they were waiting for me.
I oftenthe words I don’ t know in the dictionary or on the Internet.
_________ is known to us all is that the 2012 Olympic Games will take place in London.
Mr. Stevenson is great to work for—I really couldn’ t ask for a _______ boss.
He made another wonderful discovery, ______ of great importance to science.