[ Noun Clauses ]
It was in 1875 _________________ joined the staff of the astronomical observatory at Harvard University.
A. that Anna Winlock
B. (Anna Winlock, who
C. as Anna Winlock
D. (Anna Winlock then

Random Topics:
Modals for RecommendationsIndefinite PronounsWill or Going toAdverbial ClausesCountable - UncountableRun-On SentencesSentence Structure and Grammar RulesVerb Present Simple TensePrepositions of Place and TimePast Continuous TenseOther quiz:
Question Tags › ViewLet’s try out that new restaurant round the corner, ___
A. shall we?
B. will we?
Present Continuous › View
My dog is ________ water.
A. drank
B. drink
C. drinking
