13．Busy _______ she is, Rita ______ two hours every Sunday afternoon to spend with her son．
| A．though, sets out | B．as, sets aside |
| C．as, sets down | D．though, sets off |
Alice left the company half a month ago. Her work ___________unfinished since.
| A．has left | B．was left | C．is leaving | D．has been left |
In order to support the big family, he worked so hard that___________ he made himself ill.
| A．occasionally | B．purposefully | C．normally | D．eventually |
While he was at _________ college, he took part in political activities, and was soon thrown into prison.
| A．the; / | B．/; the | C．/; / | D．the; the |
Supposing someone___________you had been lying, what would you do?
| A．turned out | B．found out | C．picked out | D．broke out |
___ makes this shop different is ____ it offers more personal service.
| A．What ; what | B．That ; that | C．What; that | D．That; what |