When will the graduation ceremony be held？
Oh，it will be held____9 a．m．next Friday．Don't be late．（ ）
| A． |
on |
B． |
at |
C． |
in |
When will the graduation ceremony be held？
Oh，it will be held____9 a．m．next Friday．Don't be late．（ ）
| A． |
on |
B． |
at |
C． |
in |
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