________ in 1936, Harvard is one of the most famous universities in the United States.
| A．Founded | B．Founding | C．It was founded | D．Being founded |
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 |
Only when _____ in the afternoon _____ able to leave.
| A．the match was over; they were |
| B．was the match over; were they |
| C．was the match over; they were |
| D．the match was over; were they |
Mike was our ________ customer, who used to shop here on Sundays.
| A．regular | B．legal | C．normal | D．informal |