It was some time ________ we realized that we lost the chance forever.
| A．after | B．until | C．before | D．since |
With April 18’s railway speedup, highway and air transport will have to compete with ______ service for passengers.
| A．good | B．better | C．best | D．the best |
John was dismissed last week because of his ______ attitude towards his job.
| A．informal | B．casual | C．determined | D．earnest |
Since Tom ______ downloaded a virus into his computer, he can not open the file now.
| A．readily | B．horribly | C．accidentally | D．irregularly |
Alan is a careful driver, but he drives ______ of my friends.
| A．more carefully | B．the most carefully | C．less carefully | D．the least carefully |
We had wanted to finish our task by noon, but it didn’t quite _____ as planned.
| A．find out | B．give out | C．hand out | D．work out |