[ Grammar ]
I think Joey must _____ late tonight. His office light is still on.
A. have worked
B. works
C. be working
D. to work

Random Topics:
Modal Verbs and Gender NounsComparatives, Superlatives & EquativesPast Tenseanother/the others/each other/one anotherConditionals / Unreal PastReported - GerundAspect or tenses of VerbsModal VerbsVerb FormsAbstract NounsOther quiz:
Grammar › ViewPut a pinch of salt in the soup. Which is the material noun?
A. salt
B. pinch
C. soup
Grammar › View
Had she____(do) her homework ?
A. did
B. done
C. does
Relative Clauses › ViewThere was a time __________ dinosaurs dominated the earth.
A. which
B. when
C. that
D. both ‘which’ and ‘when’
Grammar › View
One day when I’m rich and famous, I’m going to go on a round-the-world__________ to see many world heritage sites.
A. cruise
B. sail
C. self-catering
D. survival
