[ Prepositions ]
She’s been working ___ nine this morning.
a. for
b. since

Random Topics:
Modals with Perfect InfinitivePast Simple & Past PerfectPerfect ModalsAdverbs, Prefixes, and SuffixesGrammar-Present Continuous-Sentence MakingDefinite & Indefinite Pronoun & ConditionalsPossessive NounsPre-intermediateTo Infinitive or GerundPassive Modals, Impersonal PassiveOther quiz:
Paired Conjunction › ViewHave you made a decision about ……… to go to the movies …. not?
A. not only….but also
B. either……or
C. neither…..nor
D. whether….or
Action, Helping & Linking Verbs › View
The dog was burying a bone.
A. Action
B. Linking
C. Helping