We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
With April 18’s railway speedup, highway and air transport will have to compete with ______ service for passengers.
John was dismissed last week because of his ______ attitude towards his job.
Since Tom ______ downloaded a virus into his computer, he can not open the file now.
Alan is a careful driver, but he drives ______ of my friends.
We had wanted to finish our task by noon, but it didn’t quite _____ as planned.