The chairman thought ______ necessary to invite Professor Smith to speak at the meeting.
| A．that | B．it | C．this | D．him |
The experiment is of particular importance.
—I see. We will carry on with it ________ we can get enough money.
| A．unless | B．though | C．whether | D．until |
.I think that this meal was well worth ________ was charged for it.
| A．that | B．what | C．which | D．how many |
________ all over the hills and around the lake are wild flowers of different kinds.
| A．To grow | B．Growing | C．Grown | D．Grow |
Although he sometimes loses his temper, his students like him ________ for it.
| A．not so much | B．not so little | C．no more | D．no less |
.Professor Zhang gave all the textbooks to all the pupils, except _____ who had already taken them.
| A．these | B．ones | C．the ones | D．the others |