9. The theory of continental drift assumes that there____long-term climatic changes in many areas during the past.
A. Must have been
B. Must be
C. Must have
D. Must
Answer: A
Keyword: assumes, during the past
Baca Juga: Rumus dan Fungsi Simple Past Tense Beserta Struktur dalam Kalimat
10. The man standing over there asked me whether he____the flowers from my garden.
A. Took
B. Might take
C. Ought to take
D. Would take
Answer: B
Keyword: asked me, whether.