Police have asked witnesses of the accident to ___________, as the victim is critically wounded, unable to give an account of the accident.
| A．come by | B．come across | C．come forward | D．come on |
She had no sooner finished her task ________ it began to rain.
| A．when | B．than | C．that | D．as soon as |
________，Carolina couldn't get the door open.
| A．Might she as try | B．As she might try |
| C．She might as try | D．Try as she might |
—We must thank you for taking the trouble to cook us a meal.
—________.
| A．With pleasure | B．It doesn't matter |
| C．It was no trouble at all | D．By all means |
Dream of the Red Chamber is ________worth ________because we can learn a lot about the noble families in the feudal society.
| A．very；reading | B．well；to be read |
| C．well；reading | D．very；to be read |
When I talked with my grandma on the phone, she sounded weak, but by the time we ________up, her voice had been full of life.
| A．were hanging | B．had hung |
| C．hung | D．would hang |