$\backslash$table$[[$Task description,$\backslash$table$[[$Students$],[$involved$],[$in task$]],$Week$],[123456,67891011],[\backslash$table$[[1.$ Construct, test on friends, and complete a$],[$final draft of a questionnaire$]],$A$,{}_1,],[2.$ Type the final questionnaire,C$,,],[\backslash$table$[[3.$ Randomly select the names of $200$ students$],[$from the school directory$]],$A$,,],[4.$ E$-$mail questionnaires,C$,\frac{?}{{?}_{\frac{?}{?}}},],[5.$ Monitor completed questionnaires,B$,,$