题目内容
Babies sleep l6 to l8 hours in every 24 hours, and theysleep less ________ they grow older.
- A.while
- B.as
- C.when
- D.after
B
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Babies sleep l6 to l8 hours in every 24 hours, and they sleep less ________ they grow older.
A.while |
B.as |
C.when |
D.after |