—The Mars-500 test will take about 520 days.
—__________ I hope it goes well.
A.It’s a pleasure. | B.Good luck! | C.That’s OK. | D.Congratulations! |
—The Mars-500 test will take about 520 days.
—__________ I hope it goes well.
A.It’s a pleasure. | B.Good luck! | C.That’s OK. | D.Congratulations! |