The reason_________ he didn't come was _________ he had to take care of his sick mother.
| A．why ; that | B．why ; which |
| C．which ; why | D．that ; for |
相关试题
To keep the air clean this hospital forbids all the patients ________ in and around it.
| A．smoke | B．smoking | C．to be smoking | D．smoked |
Tom looked at Jenny, with tears ________ his eyes, and shouted out the words ________ in his heart for years.
| A．filling; having been hidden | B．filled; hidden |
| C．filling; hidden | D．filled; hiding |
The shoes made in Chengdu are usually of high quality, so they ________ long.
| A．wore | B．are worn | C．wear | D．will be worn |
The number of people in the world ______ about 6 billion and large quantities of waste ________ each year.
| A．total; has been produced | B．totals; is produced |
| C．totals; are produced | D．total; are being produced |
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