The plane takes off at 6:00 p.m. So I have to arrive at the airport ________ 5:30 p.m. at the latest.A after B. since C. until D. by
__________, we'll come to see you again.
The rainbow is one of the most beautiful ___ in nature.
After ___ absence, she found her hometown greatly changed.
Could you give me a ___ in your car?
The two men are______.