Social practice is an opportunity for students to gain a better understanding of_____ society operates.
| A．when | B．what | C．how | D．whether |
I just don’t understand _______ that prevents so many Americans from being as happy as one might expect.
| A．why it does | B．what it does |
| C．what it is | D．why it is |
Exactly when the first people arrived in ________ we now know as California, no one really knows.
| A．which | B．what | C．that | D．it |
George Washington was born in 1732 in a rich family in _______ is now the state of Virginia.
| A．which | B．where | C．that | D．what |
—What are you anxious about?
— ____
| A．How can we succeed | B．Whether we can succeed |
| C．When can we succeed | D．That we can succeed |
Last Sunday, Mr. Green asked Lilyshe had written to her mother.
| A．that; yesterday | B．that; the day before |
| C．whether; yesterday | D．whether; the day before |
It’s a common scene in the film Tangshan Earthquake that families cry helplessly over _____ is left of their homes.
| A．what | B．which | C．there | D．it |
Last Sunday, Mr. Green asked Lilyshe had written to her mother.
| A．that; yesterday | B．that; the day before |
| C．whether; yesterday | D．whether; the day before |
I am sure ____ he did is wise.
| A．that | B．about that | C．of that | D．that what |
The road is covered with snow. I can’t understand ______ they insist on going by motorbike.
| A．why | B．whether | C．when | D．how |
It wasn’t until dark _________ he found _________ he thought was the correct way to solve the problem.
| A．when , that | B．that , that | C．when , what | D．that , what |
When I try to understand ________ that prevents so many children from being happy, there seem to be three causes.
| A．why it is | B．what it does | C．why it does | D．what it is |
John seems puzzled about ________ the question meant.
| A．how | B．why | C．what | D．which |
I don’t doubt ______ for the journey by doing jobs on the ship.
| A．that he can pay | B．whether he can pay |
| C．that can he pay | D．whether can he pay |
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