12. ----- Why don’t you do some shopping in the second-hand store ? ------ Well, the goods there are _____, but _____.
The car is environmentally friendly because it uses electricity instead of gas. _____, it is less expensive.
She showed me a red silk dress _____ online, which cost her only 10 dollars.
Having no enough time to practice, the girl wondered whether she _____ pass the driving test.
I recorded the professor’s speech on my cellphone _____ I could listen to it several times later.
—You seem tired, David.—Yes. I _____ all day long and can’t wait to go to bed now.