A scientist had been working in the canyon.
A. One day a scientist found a long, thin piece of silk at the bottom of the canyon, yet he had been working in the canyon.
B. One day a scientist found a long,thin piece of silk at the bottom of the canyon and he had been working there.
C. One day a scientist who had been working in the canyon found a long,thin piece of silk at the bottom of the canyon.
D. No one was ever able to overtake the fleeing phantom ; because it always seemed to disappear into thin air.

Random Topics:
�Put� Phrasal VerbDirect and Indirect QuestionModals, Conditionals, and Clauses- Defining, Non-definingProverbsAdverbs, Prefixes, and SuffixesModals "Should"Continuous TenseVerbs and Subject Verb AgreementPresent/Past/Future Continuous TenseSuffixes (ing-ed) SentencesOther quiz:
Grammar › ViewWhen Delores realized that her father had made lima beans and rice for dinner, she __________, claimed to feel nauseous, and excused herself from the table. The bag of stale popcorn in her room would tide her over until breakfast.
A. clutched her stomach
B. was clutching her stomach
C. did clutch her stomach
Grammar › View
Look! We ______________ (bake) a cake together.
A. are baking
B. are bakeing
C. bake
D. baking