________is reported in the newspapers, talks between the two countries are making progress．
| A．It | B．As | C．Which | D．What |
To keep the town clean, the truck ____ garbage is prevented ____ entering the town.
| A．loaded with; / | B．loading with; from | C．loaded of; from | D．loading of; / |
Is this the reason ____ at the meeting for his carelessness in his work ?
A. he explainedB. what he explained
C how he explainedD. why he explained
I didn’t realize putting on a play _________ so much work.
| A．included | B．have | C．involved | D．need |
We have been prepared to do________it takes to save her life.
| A．no matter what | B．however | C．whatever | D．whoever |