[ Grammar ]
I lost my keys and have been ___________ since this morning.
A. looking them for
B. looking for them

Random Topics:
Vocabulary and Modal VerbsPrepositions and Prepositional PhrasesPossessive Adjective and PronounWill, Be going to, Present ContinuousSimple Present Tense/be/Present ProgessivePhrasal Verb & Prepositional PhraseParticipal PhrasesModal ProbabilityModals of AdvisabilityConjunction and PunctuationOther quiz:
Types of Sentences › ViewI will try when I succeed.
A. Simple sentence
B. Compound sentence
C. Compound complex sentence
D. Complex sentence
Grammar › View
“Do not _________ the trees in the park,” says the ranger.
A. climb
B. climbed
C. climbs
D. climbing