Because of the （improve) ______of the road conditions, there have been fewer accidents rec

The last half of the nineteenth century ______ the steady improvement in the means of trav

According to the passage, Argentina is world－famous because of its ______.A．large number o

If banks ______ the number of credit cards, the economy would improve.A．limitingB．limitedC

Peter, ever the_______, said things were bound to improve.A) introvertB) pessimistC) o

According to Louis Seck, the Israeli project______.A．can rapidly improve the daily lives o

There are more and more crimes ______ a lack of rules and regulations.A sinceB because o