[ Grammar: Adjectives & Prepositions ]
I think Anna is worried _____ her grades.
A. about
B. of
C. at
D. with

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-ing form and the to-infinitiveConjunctive AdverbGrammar: was/wereContinuous TensePerfect and Past TensesConditional Sentence Type 3Present ContinuousPast Tense vs Future TenseBare Infinitive and To InfinitiveVerbs: Action, Linking, and HelpingOther quiz:
Grammar › ViewBefore computers were common in the classroom, teachers ____________ in front of the room and talk endlessly about a subject.
A. would have to stand up
B. will have to stand up
C. would have had to stand up
D. will have had to stand up
Grammar › View
These animals are now on the verge of ___________.
A. natural tendency
B. extinction
C. thriving
D. developing
Tenses › ViewThey are going to go to the zoo tomorrow at 9 a.m. so you can’t meet them at their home.
At 10.15 tomorrow, they_______ around the zoo.
A. will be walking
B. walk
C. walked
D. have been walking
Compound Adjectives › View
Which country lies to the _________________ of India?
A. south-west
B. first-class
C. left-handed
D. easy-going
