You can only borrow two books ____________ if you don’t have a library card.A. on time B. in time . from time to time D. at a time
–Would you mind taking the underground to the theatre tonight? --_________. It will take less time than driving a car.
The golden medal will be presented ________the first one.
In the film , a young girl is found _______in her bedroom, so the film is _________horror and mysteries.
There _________a number of trees on both sides of the river .________them is about 200,000.
You are sure to fail the exam________ you study hard.