We ____________ book the tickets in advance. The concert is very popular.
A. must
B. may
C. ought to

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Do not- Does notPassive Voice, Modals of Deduction and First ConditionalTenses and Time MarkersAsking & Giving OpinionActive and Passive Gerunds and InfinitivesIdiomsModal RequestsVerb ConjugationModals of ProbabilityPersonal PronounsOther quiz:
Grammar › ViewThe man ______ the car.
A. fixing
B. fix
C. fixes
D. fixs
Grammar › View
(1) The chimps at the Houston Zoo enjoy many enrichment activities. (2) The chimps’ playrooms are packed with toys, blankets, and more swings. (3) The keepers use them to keep the chimps engaged and to encourage the expression of natural behaviors.
Which of these sentences could BEST follow sentence 3 to enhance the meaning?
A. Chimps can also rest in private cages that give them access to the indoor play space.
B. Going to the zoo is a great way to spend the day.
C. At the zoo there is a lot to do.
D. There are many ways to encourage natural behaviors in animals at the zoo.
Vocabulary › Viewthings that are available to help someone accomplish a job or achieve a goal
A. pursue
B. resources
C. establish
Vocabulary › View
What is the meaning of oblige?
A. a fence used as an enclosure for protection or defense
B. distrust
C. swarming
D. to accommodate
