Experts believe that land that is becoming deserts ________ the size of Australia, Russia and the United States put together

I’ve got a message from the head teacher ______ the English exam won’t be held tomorrow.

Has James finished his report on his EnquiryLearning yet\ —- I’m not sure. He _____ on it lastweek.

依次填入下列各句横线处的成语，最恰当的一组是①你若坚持，定能发光。因为时间是所向披靡的武器，它能 ，也能聚沙成塔，将人生所有的不可能都变成可能。②小错误不省思就可能铸成大错，小腐败积累起来就会形成大腐败，必须明白 的道理，防微杜渐。③3月11日，面对强势外援的四川金强队，辽宁队 ，拿下冠军之路第一场比赛。

travelling alone Icanstaylonger______ Iwish,or just keepmovingalong