The police are sure they ___ the thief by Sunday.
A. have arrested
B. going to arrest
C. will be arresting
D. will have arrested

Random Topics:
Grammar Double Object VerbsImperative SentencesPresent Simple & Present Continuous TensesWill vs be going toIndependent/Dependent Clauses & Relative ClausesRelative Clauses & Real ConditionalsPreposition of PlaceQuestion Tags in Verb Tenseswould should couldVerb and PrepositionOther quiz:
Tenses › ViewI ___ to America five years ago. Since then, I ___ American, and ___ nearly all I ___ there.
A. had gone/haven’t spoken/have
B. had gone/don’t speak/forget/learned
C. was going/haven’t spoken/forgot/had learned
D. went/haven’t spoken/ have forgotten/learned
E. went/hasn’t spoken/forgot/had learned
Grammar and Vocabulary › View
Choose the best option to fill in the gap: Environmental changes in Antarctica __________ a drastic decline in the numbers of penguins.
A. have caused
B. have brought
C. have led to
D. have resulted from
Tenses › ViewShe ___________ English every week.
A. teaches
B. teach
Kinds of Sentences › View
Are you willing to help a stranger?
A. Declarative Sentence
B. Exclamatory Sentence
C. Imperative Sentence
D. Interrogative Sentence