[ Past Tenses ]
Combine past continuous and past simple in a sentence.
A. While watching TV, she called.
B. I was watching TV when she called.
C. She was calling while I watched TV.
D. I watched TV when she called.

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Tenses and Structures › ViewHe _____ his homework before watching TV.
A. Finish
B. Finishes
C. Finishing
D. Finished
Grammar › View
My classmates and I ___ on a trip to Sun Moon Lake next week. We’re really excited(感到興奮的).
A. went
B. am going to go
C. are going to
D. will go