The mountaineers made their ___ camp before attempting to climb to the summit.
a. base
b. bass

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Present Progressive or Present SimpleRelative Clauses beginning with PrepositionsParticiple - ing/ edAuxiliaries VerbGerunds as Objects of PrepositionsTenses and StructurePresent Tenses and VocabularyVerb, Object, PrepositionModals of Obligation & ProhibitionHave GotOther quiz:
TOEFL › View_____________a tornado spins in a counterclockwise direction in the northern hemisphere, it spins in the opposite direction in the southern hemisphere.
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Choose the correct first conditional sentence: If it rains tomorrow, I ______ my umbrella.
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My mother cooks macaroni every week but she doesn’t prepare sushi.
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C. Marta said her mother cooked macaroni every week but she didn’t prepared sushi.