The main road _____ for repairs, so we had to change the route to the downtown.
| A．is being closed | B．has been closed | C．was to be closed | D．had been closed |
______ being fun and good exercise ,swimming is a very useful skill.
| A．Apart from | B．Except | C．Except for | D．Except that |
Come and see me whenever ____.
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it was convenient to you |
It is strange that he _________ in such an important examination .
| A．failed | B．should fail | C．should have failed | D．fails |
After ten hours’ operation, the doctors managed to _____the one-year-old twins at the head.
| A． tell | B．separate | C．divide | D．Remove |
It is greatly ________ that he gave back the money he found on the bus.
| A．for his delight | B．to his delight | C．to his credit | D．in his credit |