You should book a train ticket_____ if you want to go home in time before the Spring Festival.
14.This doubt had been in my mind for some time, but the research still went on____some reasons.
13.Not until I was a senior student_________the importance of English.
12.There is__________in what you say; I will take your advice.
11.—I passed my driving test at the first_________. —Congratulations!
10.The man_________at the meeting yesterday will be our new manager.