
581
Q478847
582
Q478845

583
Q478844

584
Q478842

The word head, as used in the text, belongs to which of the following groups?
585
Q478840

The missing [CONNECTIVE] is
586
Q478838

A synonym for the adjective private, as used in the text, is
587
Q478836

In the sentence He has always been private about money, the Present Perfect is
588
Q478834

The underlined verb had, as used in the last paragraph, can be replaced, without any change in meaning, by
589
Q478832

590
Q478830
Attention: For questions 46-48, choose the suitable option to complete each sentence.
If we turned off home computers when not in use, we ...... down their CO2 impact by 50 percent.