How I wish I _________ him the secret! I regret having done that now.
| A．hadn’t told | B．had told | C．would tell | D．didn’t tell |
________ he is ,he seldom shows his precious coins to others.
| A．Coin -collector as | B．As a coin -collector |
| C．A coin- collector as | D．Coin- collector that |
________ all over the hills and around the lake are wild flowers of different kinds.
| A．To grow | B．Growing | C．Grown | D．Grow |
Apples are usually sold by ________ weight and eggs are sometimes sold by ________ dozen.
| A．the; the | B．/;a |
| C．/; the | D．the; a |
I think that this meal was well worth ________ was charged for it.
| A．that | B．what | C．which | D．how many |
—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 |