--Cliff, I lost your ball at school. I suppose I should pay for it.
--- Oh. _____. It was just as old ball anyway.
| A．Take it easy | B．By no means | C．You got it | D．Forget it . |
Criticism and self-criticism is necessary _____ it helps us to correct our mistakes.
| A．by that | B．at that | C．on that | D．in that |
_____ or not we had a baby, we couldn’t survive only on my salary.
| A．As | B．Even | C．However | D．Whether |
_____ 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 |