单项选择题
A.recognize B.revenge C.recollect D.receive
（） all we have learned from space flights, the moon is ...
单项选择题（） all we have learned from space flights, the moon is still a riddle from the distant past.
A.Insteadof B.Inspiteof C.Insearchof D.Becauseof
I was exhausted when I reached home, and I flung myself...
单项选择题I was exhausted when I reached home, and I flung myself down on the front steps to （）.
A. discover B. recover C. dissolve D. retreat
The bees（）out o ftheir hive.A.flockedB.swarmedC.packedD...
单项选择题The bees（）out o ftheir hive.
A.flocked B.swarmed C.packed D.crowded
