--Why does the Lake smell terrible?

--Because large quantities of water .

A． have polluted B. is being polluted C. has been polluted D. have been polluted

[单选题]The electric fan has blown away the terrible smell in the hall, ______?A.ca

[单选题]Why does the author write the text?A． To stress the importance of oxen in farming.B． To introduce the Chinese folk culture.C． To describe how to celebrate the Year of Ox.D． To explain how to develop agriculture with oxen.

[单选题]Why does the writer of the letter that Electro-Robo is violent?A． It is control to radio water.B． It is expensive to buy.C． It is 80 centimeterD． It bears arms.

[单选题]Why does author say that they were lucky in the third paragraph?A． Because her situation was not serious.B． Because many other places were flooded.C． Because she had been to Northern India.D． Because some others suffered even more.

[单选题]Why does the woman invite the man to tea？A．She needs some friends to talk with.B．She will give the man some useful information.C．She needs some help from the man.

[单选题]Why does the woman plan to go to town?A．To pay her bills in the bank.B．To buy books in a bookstore.C．To get some money from the bank,

[试题]Why does the woman plan to go to town？A． To pay her bills in the bank. B To buy books in a bookstore. C To get some money from te bank.

[单选题]Why does the woman plan to go to town?A． To pay her bills in the bank. B. To buy books in a bookstore. C. To get some money from the bank

[单选题]Why does the system fall to arrest a wanted person?A．The system is not effective in recognizing people.B．The system doesn't look at skin color or one's gender.C．The system doesn't consider people's specific features.D．The system is highly inaccur

[单选题]Why does the author think it necessary to bring order to the Internet_________?A． Because its database is disorganized.B． Because the information required is specific.C． Because its information is diverse and widespread.D． All of the above.