They ………… for three hours when they stopped for a rest.
A. have been driving
B. had been driving
C. were driving

Random Topics:
Inversions and SubjunctivePast and Present Continuous tenseConditional Sentence Type 0-3Simple Present and Simple PastApologizingGrammar and AbsencePresent Perfect TenseAdverbs of DegreeAdverbs and AdjectivesGrammar and Sentence CorrectionOther quiz:
Contrastive Conjunctions › ViewWrite a sentence with ‘however’ that contrasts two opinions.
A. Many employees enjoy the flexibility of remote work; however, some believe it hinders effective collaboration.
B. Many employees find remote work isolating; however, it is the best choice for productivity.
C. Some people dislike remote work; however, it is the only option available now.
D. Remote work is preferred by everyone; however, it is not suitable for all jobs.
Vocabulary › View
a round path used for sports such as running
A. encourage
B. track
C. prize
D. host
Coordinating & Subordinating Conjunctions › ViewThere are five birds in the tree.
Is this sentence simple, compound, or complex?
A. simple
B. compound
C. complex
Mixed Tenses › View
Let’s……our easy test
A. start
B. starts
C. started
D. is starting
E. have started
