You made the same mistake for _____ second time, dropping _____ “r” in the word “preferred”.
| A．a , the | B．a, a | C．the , an | D．a , an |
. Listen! Do you hear someone __________for help?
| A．calling | B．call | C．to call | D．called |
Dina, _______ for months to find a job as a waitress, finally took a position at a local advertising agency.
| A．struggling | B．struggled | C．having struggled | D．to struggle |
. So far nobody has claimed the money ___________________in the library.
| A．discovered | B．to be discovered | C．discovering | D．having discovered |
.(江苏卷28). The retired man donated most of his savings to the school damaged by the earthquake in Yushu,
________ the students to return to their classrooms.
| A．enabling | B．having enabled | C．to enable | D．to have enabled |
(江西卷24). The lady welled around the shops,an eye out for bargains.
| A．keep | B．kept | C．keeping | D．to keep |