[ Past Tenses ]
They __________ (debug) for two hours before they found the error.
A. debugged
B. had debugged
C. were debugging
D. had been debugging
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Grammar › ViewWhat is the positive degree of ( Taller ) ?
A. most tall
B. more tall
C. tallest
D. tall
Modal Verbs › View
The noise from the trains __________ me terribly last night.
A. was annoyed
B. annoyed
C. has annoyed
D. had annoyed