[ Prepositions ]
Aircraft pilots communicate _______ control towers.
A. at
B. for
C. during
D. with

Random Topics:
Sentence StructureSimple Past - Irregular VerbsPast TenseGrammar / PronounsConjunctions, Prepositions and InterjectionsTenses and Verb FormsHabitual and Continuous TensesGerunds/InfinitivesLinking VerbSimple and Continuous Present TenseOther quiz:
Time Clauses of Future › ViewWhen I ________________ my homework, I’ll call you.
A. will finish
B. am going to finish
C. to finish
D. finish
Modal Verbs › View
It ________ rain this evening. Why don’t you take an umbrella?
A. had better
B. might
C. must
D. could
Grammar › ViewHelen: What_____ your sister do now?
Jorge: She works as a manager for a small hotel in Peru.
A. does
B. is
C. do
D. was
Grammar and Vocabulary › View
Choose the correct answer?
A. I am tired. I worked all day.
B. I am tired. I work all day.
C. I am tired. I have been working all day.
