By working slowly but surely towards your goal, you'll___________succeed.
A. eventually B. accidentally C. occasionally D purposely
I’d appreciate _____ if you would like to teach me how to use the computer．
| A．that | B．this | C．it | D．you |
The government has to close those small factories to prevent the water of the river ______.
| A．polluting | B．from polluting | C．being polluted | D．polluted |
There are _____ products to be sold in the factory store. Which of the following is not correct?
| A．a large number of | B．a large amount of | C．quantities of | D．a great many |
He did not regret saying what he did but felt that he _____ it differently.
| A．could express | B．would express |
| C．could have expressed | D．must have expressed |
--Excuse me,_________? --That’s ￡200 altogether, sir.
| A．what does it cost | B．is it the right amount |
| C．could I have the bill | D．can I place an order |