[ Adverb and 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 in the PastVerbs + Gerund or InfinitiveInfinitiveRoot WordPresent Tense (Negatives and Questions)Auxiliary ModalPresent Continuous for FutureModal VerbsTag QuestionQuantifiers MixOther quiz:
Grammar › ViewWhat is the irregular past tense form of “go”?
A. went
B. gone
C. goed
D. goed
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What are adjectives that describe how something tastes?
A. soft and warm
B. sweet and spicy
C. silly and funny
D. long and short
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A. Gerund
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Subject-Verb Agreement › View
Neither his mother, nor his mother _____ mahjong.
A. Play
B. Plays
C. Played
D. Playing
