题目内容
(请给出正确答案)
[主观题]
______ at the launching position a lift took him up to the rocket, which was 65 feet above
the ground.
A.While arriving
B.Having arrived
C.When he arrived
D.On his arrival
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A.While arriving
B.Having arrived
C.When he arrived
D.On his arrival
A launch
B withstand
C contest
D contend