[ Grammar ]
I ……. waiting there for more than four hours when she finally arrived.
A. Had been
B. Has been
C. Has
D. Have

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Grammar › ViewHe opened the door ______. I didn’t hear any voices.
A. quietly
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Grammar › View
Identify the subject.
The island has miles of jagged coastline.
A. island
B. has
C. miles
D. coastline