[ 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 › View_____ ______ some animals in the pool.
A. there is
B. is there
C. there are
D. are there
Grammar › View
When I saw you in the shop last night, you …………… your new hat.
A. don’t wear
B. weren’t wearing
C. haven’t been wearing
D. haven’t worn
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
