[ Grammar ]
Museums of natural history are ordinarily – – – – – by special interest groups created for that purpose.
(A) owned and operated
(B) they own and operate
(C) owning and operating
(D) the owner operates

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Future TensesAdverb of MannerPast Progressive TenseGrammar: Have toGrammar Past and Future TenseMust Vs Have toGrammar - help/have/let/makeReported Speech and SubjunctiveIndependent and Dependent ClausesVerb Forms and PrepositionsOther quiz:
Conjunctions and Verb Tenses › ViewIdentify the conjunction in the sentence: “She wanted to go swimming, yet the pool was closed.”
A. wanted
B. go
C. yet
D. closed
Grammar › View
In preparation for her run, Alicia __________, applied sunscreen, and increased the volume on her iPod.
A. tightened her shoelaces
B. was tightening her shoelaces
C. did tighten her shoelaces
Prepositions › ViewFour-fifths of the world’s computers use programs ________ English.
A. at
B. in
C. on
D. about
Grammar › View
A: The weather is beautiful. Would you like to ….
B: I’d love to.
A. study hard
B. go for a walk
C. stay in
D. play computer games
