(?) Did you meet your best friend because you and your best friend wanted to buy bracelets together? / Apakah kamu bertemu sahabatmu karena kalian ingin membeli gelang bersama?
17. (+) I took the TOEFL test last week. / Aku mengikuti tes TOEFL minggu lalu.
(-) I did not take the TOEFL test last week. / Aku tidak mengikuti tes TOEFL minggu lalu.
(?) Did you take the TOEFL test last week? / Apakah kamu mengikuti tes TOEFL minggu lalu?
18. (+) Yesterday they were very happy because they won the match. / Kemarin mereka sangat bahagia karena mereka memenangkan pertandingannya.
(-) Yesterday they were not happy because they did not win the match. / Kemarin mereka tidak bahagia karena mereka tidak memenangkan pertandingannya.