lt was his positive attitude to life and hard work _________finally led him to his successful career .
| A．which | B．what | C．that | D．as |
I was about to walk over to Tom's seat when he ______ and left.
| A．set up | B．got up | C．put up | D．came up |
All the students in this school are required to ________ at least two lectures on how to study every month.
| A．attend | B．take part in | C．join in | D．join |
Your desk is covered with too many unnecessary things, including used papers and books. You’d better ________ some of them.
| A．remain | B．replace | C．remove | D．renew |
On arrival at the flood-stricken village, the PLA soldiers set ______ rescuing the villagers.
| A．for | B．out | C．about | D．off |
He gave us another piece of advice, ________ of great help to the research work.
| A．which I think is | B．which I think it is |
| C．I think which is | D．I think it is |