The explorer told the students about his in Africa, which inspired them greatly.Which of the following is UNSUITABLE for the blank?
. So many people wanted to go to the game that another train had to be ______.
. The dictionary published by Oxford University Press recently has really ______ because it is of great use to the learners of English.
. There were no tickets _____ for Friday's performance.
. Today, housework has been made much easier by electrical _____.