{01}— How long do you think it will be _____ China sends a manned spaceship to the moon? — Perhaps two or three years. A.when B.until C.that D.before 解析: 本题选D。
{02}A good storyteller must be able to hold his listeners" curiosity _____ he reaches the end of the story. A.when B.unless C.after D.until 解析: 本题选D。
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