b. since
Answer: a. for
9. Lisa and Jill have been at the library _____ a long time.
a. for
b. since
Answer: a. for
Baca Juga: Rumus, Fungsi, dan Struktur Present Perfect Tense dalam Kalimat
10. My teacher has been sick _____ last Monday.
a. for
b. since
Answer: a. for
9. Lisa and Jill have been at the library _____ a long time.
a. for
b. since
Answer: a. for
Baca Juga: Rumus, Fungsi, dan Struktur Present Perfect Tense dalam Kalimat
10. My teacher has been sick _____ last Monday.
a. for