None of the students watched the teacher______.
| A．careful enough | B．enough carefully | C．carefully enough | D．enough careful |
On Feb. 6, Xi’an－Zhenzhou High Speed Railway,___________first high-speed railway in_______West China, was put into operation.
| A．不填; the | B．the; the | C．the;不填 | D．不填；不填 |
I advised you _____ drink water that isn’t ______ any more.
| A．not; boiled | B．not to; boiling |
| C．not; boiling | D．not to; boiled |
— ________?
—No, you have to pay for them.
| A．Are the drinks free | B．Do the drinks cost much |
| C．Are the drinks expensive | D．Do I have to pay for the drinks |
Is this the reason at the meeting for his carelessness in his work?
| A．he explained | B．what he explained |
| C．how he explained | D．why he explained |
It’s freezing outside. You ______put on your coat.
| A．had better to | B．had better | C．would rather | D．would better to |