Emergency line operators must always ________ calm and make sure that they get all the information they need to send help.
| A．grow | B．appear | C．become | D．stay |
My teacher______of us to hand in the compositions tomorrow.
| A．asked | B．demanded | C．requested | D．begged |
______,please correct my mistakes in the composition.
| A．If so | B．If possibly | C．If not | D．If any |
George Bush______was a politician,like his son George W.Bush.
| A．the older | B．older | C．the elder | D．an elder |
The bright flowers and warm winds______that spring was here.
| A．announced | B．declared | C．tell | D．published |
______to take this adventure course will certainly learn a lot of useful skills.
| A．Brave enough students | B．Enough brave students |
| C．Students brave enough | D．Students enough brave |