1. (2019八下·顺德月考) When did Helen enter a maths competition?

My friend Helen entered three competitions and won three first prizes last week.<br />Really? What competitions did she enter?<br />She entered a history competition on Tuesday, a maths competition on Thursday, and a geography competition on Friday.<br />My friend Helen entered three competitions and won three first prizes last week.<br />Really? What competitions did she enter?<br />She entered a history competition on Tuesday, a maths competition on Thursday, and a geography competition on Friday.