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.
A、challenge
B、cheap
C、choose
D、character
You' d better speak loudly at the meeting______everyone can hear you.