The waterfall can be seen _______. Its sound may be heard _______ two miles. It looks even more beautiful _______, I think.
| A．at a distance; in the distance of; from a distance |
| B．from a distance; in the distance; at a distance |
| C．in the distance; from a distance of; at a distance |
| D．in the distance ; at a distance of; from a distance |
____________ the weather has improved, the game will be held as planned.
| A．While | B．Since | C．If | D．Unless |
Emergency line operators _______ always stay calm and make sure that they get all the information they need to send help.
| A．can | B．would | C．must | D．might |
— I’m still working on my project.
— Hurry up, or you’ll miss the deadline. Time is _______________.
| A．running out | B．dying out | C．giving out | D．bursting out |
The command has just arrived that all employees ____________ in their proper uniforms before 7:00 pm.
| A．will be dressed | B．must be dressed |
| C．were dressed | D．be dressed |
I just wonder ____________ that makes him so excited.
| A．why it does | B．what he does | C．how it is | D．what it is |