[ during, for, while ]
She has been sleeping ___ ten hours.
A. during
B. for
C. while

Random Topics:
Simple Present Negative and QuestionSimple Past ContinuosHas and HaveModal RequestsFuture FormsFuture Perfect vs Future ContinuousAdverbs or AdjectivesModals in the PastModal Verb, Passive VoicePast Perfect Tense and Past TenseOther quiz:
Grammar › Viewwhich one is the correct answer?
A. the dog barks loudly
B. the dog barks loud
Vocabulary › View
Very plain; Devoid of any details or features
A. Stark
B. Susceptible
C. Teeming
D. Ubiqutious
Grammar › ViewDo you mind closing the window?
A. Will
B. Could
C. Would
Grammar › View
We decided…….our holiday on a Spanish beach.
A. have spent
B. spend
C. to spend
D. spending