[ Gerund vs Infinitive ]
They would not hesitate _____ the police at the first sign of trouble.
A. to call
B. calling
C. call

Random Topics:
Adjective SuffixesDaily Routines & TensesPast Progressive TensePast Simple, Past Continuous, Past PerfectThe Past SimpleTenses and Word FormationGrammar: Have toModal Probability3rd Person SingularVerbs & Verb TensesOther quiz:
Subject Verb Agreement › ViewThere __________ more calories in a bowl of chocolate-broccoli breakfast cereal than you might think.
A. is
B. are
C. do
D. does
Past Tenses › View
They ___________ (to leave) at half past ten.
A. had left
B. left
C. was leaving
Adverbial Clauses › View______ his motorbike, he found a puncture on the back tire.
A. After he has washed
B. While he is washing
C. As soon as he is washing
D. When he was washing
Phrases and Tenses › View
Identify the informal writing in the following options:
A. I am writing to inform you about the meeting.
B. Hey, what’s up?
C. Please find the attached document.
D. I would like to request your presence.
