Now scientists know ______.A．what makes people feel cool near a lake or an ocean in summer

Now scientists know ______.

A．what makes people feel cool near a lake or a river in summer

B．everything about the ocean

C．why the ocean does not get more and more salty

D．what happens to the salt in the ocean

Now scientists know ______.

A．what makes people feel cool near a lake or a river in summer

B．everything about the ocean

C．why the ocean does not get more and more salty

D．what happens to the salt in the ocean

Now scientists know______.

A．what makes people feel cool near a lake or a river in summer

B．everything about the ocean

C．why the ocean does not get more and more salty

D．what happens to the salt in the ocean

Now scientists know______.

A．what makes people feel cool near a lake or a river in summer

B．everything about the ocean

C．why the ocean does not get more and more salty

D．what happens to the salt in the ocean

______to do now is just I am eager to know at first. But how can I get to know it？

A．What, what

B．Will, what

C．Which, which

D．I will, which

The Enlightenment thinkers are deeply concerned about _______.

A．what kinds of communities people are born into

B．the various traits of races and cultures

C．what makes people so various

D．what brings people together

A city is usually remembered for ______.

A．what there is in the center of it

B．the number of people living in it

C．what makes it different from other cities

A city is usually remembered for ______.

A．what there is in the center of it

B．the number of people living in it

C．what makes it different from other cities

Scientists now understand why people's mental faculties decline at different rates.

A．Y

B．N

C．NG

Reading the headlines, people can know ______.

A．what the passage are about

B．about sports

C．what is going on in the world