Having devoted his life to the realization of racial equality，former South African President Nelson Mandela＿＿＿on December S，2013．
| A．passed away | B．had passed away | C．has passed away | D．passes away |
The writer was _____ in his writing that he forgot to flick the ashes from his cigar.
A concentrated B devoted C absorbed D fixed
Robert _____ business two years ago， but he did not get along well at first for _____ of experience.
A took up； lack of B put up； short of C set up； need of D pick up； want of
It is ______taking the trouble ______a job fully to new employees.
| A．worthy; explaining | B．worthwhile; to explain | C．worthy; to explain | D．worthwhile; explaining |
Will you go swimming with me this weekend?
--_____________
| A．All depend | B．It depends | C．It depends on | D．All depends on |
Thanks for giving me ______ advice, but it’s difficult ______ me to carry it out.
| A．such a good; for | B．so good; for | C．such good; for | D．so good a; for |