By the end of last year China’s foreign reserves ____ $4 trillion.A: have reachedB: ha

By the end of last month, three English songs（) .

Following a year of fast development, by the first quarter of this year, China has had abo

A lot of changes have occurred in China in the last 30 years.A.happenedB.raisedC.appearedD

By the end of last year they _____ 1,000 machines.A. turned outB. had turned outC.

Professor Wu told us that by the end of the year

By the end of the year the sales plan for the ne