E-mail English is a new kind of written English that ______to save time.
A be being used B was being used C being used D is being used
_____ you are familiar with the author’s ideas, try reading all the sections as quickly as you possibly can.
| A．Now that | B．Ever since | C．So that | D．As long as |
_____ he works hard, I don’t mind when he finishes the experiment.
| A．As soon as | B．As well as | C．So far as | D．So long as |
Antarctic _____ we know very little is covered with thick ice all the year round.
| A．which | B．that | C．where | D．about which |
They decided to chase the cow away _____ it did more damage.
| A．unless | B．until | C．before | D．although |
We often think of the days _____ we spent together on the island.
| A．when | B．which | C．in which | D．during which |