[ Tenses ]
They ………. the software for a week.
A. had tested
B. were testing
C. have been testing

Random Topics:
ComparativesPast Simple and Past ProgressiveSports VocabularyMoods of GrammarAdverbs of Time and PlacePersonal PronounUnderstanding Product Packaging and TensesBare Infinitive and To InfinitiveBasic GrammarAdjective OrderOther quiz:
Grammar › ViewMr Lim never buys turtle eggs _______ he wants to save the turtles.
A. but
B. because
C. so
Past Perfect and Past Perfect Continuous Tense › View
We _________ (prepare) him for this race for months before he decided to quit.
A. had preparing
B. had prepared
C. had been prepared
D. had been preparing
Sentence Structure and Verb Tenses › ViewSelect the sentence with an adjective modifying a noun:
A. She quickly finished her homework.
B. The tall building was impressive.
C. He ran fast.
D. They spoke loudly.
Grammar › View
This drink is very sweet. It has too __________ sugar in it.
A. little
B. few
C. much
D. many
