[ Grammar ]
Grammar: Section 3. Conditionals. Choose the correct option for the sentences.
What will happen if my parachute __________(not open)?
_
A. doesn´t open
B. had not opened
C. didn´t open
D. would not have opened

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Present, Past, Present Perfect and ComparativeVerb 3 formsTo infinitive - GerundPast Simple Negative & QuestionsSubject Verb Agreement; Indefinite PronounsFuture - Will and Be going toDeterminers & QuantifiersGrammar on ConditionalsEnglish ArticlePassive to ActiveOther quiz:
Gerund Subject or Object › ViewReading before bed helps me relax.
A. Subject
B. Object
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There was no one else at the box office. I _______________ in a queue.
A. didn’t need to wait
B. mustn’t wait
C. needn’t have waited
D. needn’t wait
Adverbs of frequency › ViewManu and Tito play soccer on the mountains from Mondays to Thursdays. They _______ play soccer there.
A. seldom
B. rarely
C. sometimes
D. usually
a, an, the, Zero Article › View
__ Korean language is difficult to learn.
A. A
B. An
C. The
D. –
