A local radio station said that several eruptions _____ in the past twenty years.
---Tom is____________experienced in driving than Jack. --- ____________,neither passed the test.
— Whenever you are short of money, just come to me. —_____________
It ____ that making a plan is easier than carrying it out.
Not only ____ at music, but also they are ready to help others.
There is no doubt ____ we will host the 2010 World Expo successfully.