Choose the best option to complete the sentence.
Space tourism is judged as costly, dangerous, ________ by critics.
sustainsustainableunsustainableunsustainablyMôn học
Chủ đề / Chương
Bài học
Chủ đề
Choose the best option to complete the sentence.
Space tourism is judged as costly, dangerous, ________ by critics.
sustainsustainableunsustainableunsustainably
