1 . Due to new proper measures, by the end of this month, the carbon footprint produced by the cattle farm         by about 30%.

A．has been reduced	B．will have reduced
C．has been reducing	D．will have been reduced

2 . It’s reported that by the end of this year, huge quantities of good earth ______ due to deforestation.

A．will have been washed away	B．is being washed away
C．are being washed away	D．will have washed away

3 . By the end of 2021, several other metro lines ______. （complete）(所给词的适当形式填空)

4 . John is not a man to count on, and it is very likely that the work ____ by the time he arrives here.

A．is finished

B．has finished

C．will finish

D．will have been finished