Before the age of the Internet, we used to _______ our holidays through travel agents.
举一反三
- Before the age of the Internet, we used to ____ our holidays through travel agents. A: Book B: having booked C: ooking D: have booked
- Before the age of Internet, we used to _________our holidays through travel agents. A: ook B: ooking C: having booked D: have booked
- Before the booming of e-commerce, people used to ______ their holidays through travel agents. A: book B: having booked C: booking D: have booked
- We can ask for the useful information from travel agents.
- Before the age of the smartphone... A: I want to travel before I reach a certain age. B: We are now living in the digital age. C: X D: X