单项选择题

The officer allowed ______.

A．the students to fly the plane all the time
B．all students to fly the plane
C．the students who were not frightened to fly on their own
D．some students to fly a little while

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热门试题

单项选择题

The first thing George did at the training school was ______.

A．to take an experienced pilot in a plane
B．to be taken up into the air in a plane by an officer
C．to fly a commercial plane
D．to talk about his ideas

单项选择题

George asked the question because he wanted to show that he was ______.

A．interesting
B．not nervous
C．different
D．eager to learn