What did“doing nothing" mean to the space engineer at first?
A、Outdoor activities.
B、A waste of time.
C、Few daily schedules.
D、More family hours.
Directions:In each of the following groups of words, there are four underlined letters or ltter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet’