I first met Lily five years ago. She ___ as a nurse in a hospital at the time.
| A．was working | B．has worked | C．had been working | D．had worked |
Is ________48 hours________ the man- made satellite ________ is made in our country to orbit the planet around?
| A．it; that; where | B．it; when; what |
| C．it for; that it takes; that | D．it; that it takes; which |
Use your head! Nothing taught by others can have the same effect on you as ________learned by yourself．
| A．those | B．what | C．that | D．the one |
— You didn’t invite John to the party?
— ________ him, too?
| A．Should I invite | B．Should I have invited |
| C．Must I invite | D．Must I have invited |
My grandmother had________ over 50, 000 when she was sixty- five years old.
| A．put away | B．put back | C．put out | D．put down. |
— Whom shall I give the document?
— To ________ is in the office. However, _______to require a written paper for it.
| A．whom; make sure | B．who; make sure |
C．whomever; be sure | D．whoever; be sure |