单选题 --Who do you work for? --______.

单选题 The Samsung Group is a____ company, whose annual revenue takes a large proportion in Korea's economy.

单选题 We need a____ ride to get to the RT-Mart.

单选题 Our sales____ up every year since we started.

单选题 Over____ of all jobs are in production.

单选题 --What is the weather usually like in London? --______

单选题 What time____ the gym open, and what time____ it close?

单选题 When would____ convenient?