.In the last ten years she _____ like this; she is killing her health.
| A．has worked | B．has been working | C．worked | D．is working |
We are just _____ calling you up _____ you come in.
| A．about; when | B．on the point of; while |
| C．on the point of; when | D．on the point of; as |
--How often do you go to the library?--______.
| A．In two days | B．Every few days | C．Each third day | D．Every a few days |
I can't understand it, will you please _____ once more?
| A．explain that word | B．repeat that word | C．explain us that word | D．explain that word for us |
Everybody in the little town knew my first teacher, so we had no _____ finding his home.
| A．difficulties in | B．difficulty with | C．difficulty | D．difficulty to |
It' s too late to go out now. _____, it's starting to rain.
| A．Besides | B．Meanwhile | C．However | D．Anyhow |