It’s well-known that ________ World Exposition in 2010 is quite ________success.
A. 不填; a B. The; a 
The; 不填 D. 不填; the
Theboxofrubbers____white.
| A．is | B．are | C．be | D．were |
Noneofthatmoneyonthetable____mine.
| A．is | B．are | C．been | D．were |
Ithinkmaths____veryinteresting.
| A．are | B．is | C．sound | D．seem |
All that I need _____ a large sum of money with which to buy my wife a diamond ring.
| A．are to be | B．is | C．are | D．were |
More than one hundred students ___ been sent to Japan since 2000.
| A．have | B．has | C．are | D．is |