Is this the reason__________at the meeting for his carelessness in his work?
| A．he explained | B．what he explained | C．how he explained | D．why he explained |
Half of surveyed in 16 countries say they go first to their closet friend to share their deepest wishes and darkest fears.
| A．these | B．some | C．ones | D．those |
Nothing could be done, he_____ absent.
| A．was | B．being | C．to be | D．be |
He ________ the exam, but he was too careless.
| A．could have passed | B．couldn’t have passed |
| C．must have passed | D．may have passed |
These chairs may look good, but they’re very un-comfortable _____.
| A．to sit on | B．to be sat on | C．sit on | D．sitting on |
Do you prefer_____when your boss takes an interest in your personal life?
| A．this | B．不填 | C．that | D．it |