I chat with my good friends after school 5 ___[time]a week.

I chat with my good friends after school 5 ___[time]a week.
I chat with my good friends after school 5 ___[time]a week.

I chat with my good friends after school 5 ___[time]a week.
答案：times
five times a week 一周五次
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times　　次数

times

times

I chat with my good friends after school 5 ___[time]a week.

答案：times
解析：five times a week 一周五次
once a day 一天一次