科目： 来源：gzyy 题型：
| Mr Smith asked the boy a question _____ he could go to the concert with him. |
A. whether B. that C. what D. if |
科目： 来源：gzyy 题型：
| The fact has worried many scientists ____ the earth is becoming warmer and warmer these years. |
A. what B. which C. that D. though |
科目： 来源：gzyy 题型：
| There is no obvious evidence ____ there is life on any other planet in the solar system. |
A. which B. that C. how D. where |
科目： 来源：gzyy 题型：
| — Is there any possibility _____ you could pick me up at the airport? — No problem. |
A. when B. that C. whether D. what |
科目： 来源：gzyy 题型：
| News came from the school office _____ Wang Lin had been admitted to Beijing University. |
A. which B. what C. that D. where |
科目： 来源：gzyy 题型：
| _____ worries me that he keeps changing his mind. |
A. This B. That C. What D. It |
科目： 来源：gzyy 题型：
| You have not yet answered my question ____ I can join in the party tonight. |
A. whether B. if C. which D. that |
科目： 来源：gzyy 题型：
| When the news came _____ the war broke out, he decided to serve in the army. |
A. since B. which C. that D. because |
科目： 来源：gzyy 题型：
| Modern science has given clear evidence ____ smoking can lead to many diseases. |
A. what B. which C. that D. where |
科目： 来源：gzyy 题型：
| ____ puzzled us most was ____ Ann failed in the mid-term exam though she worked hard. |
A. It; that B. That; what C. What: that D. What; what |
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