What should we pay attention to ________mistakes during the exams？
Some details．（ ）
| A． |
avoiding making |
| B． |
avoid to make |
| C． |
to avoid making |
What should we pay attention to ________mistakes during the exams？
Some details．（ ）
| A． |
avoiding making |
| B． |
avoid to make |
| C． |
to avoid making |
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