The clinical trial had to be temporarily suspended ---- some volunteers exhibited unexpected cardiac arrhythmia.
Answer and explanation
Correct answer: A. because
- Step 1: A causal connector followed by a full clause (subject + verb: 'some volunteers exhibited...') is required.
- Step 2: 'Because' introduces an adverbial clause of reason.
- Step 3: 'Despite' requires a noun phrase; 'so as to' requires an infinitive.
Answer
because.
Why not the others: 'In order that' denotes purpose; 'Despite' is a preposition; 'So as to' takes a bare infinitive verb.
Practise more Advanced Grammar, Clauses and Connectors.
Free questions with an explanation for every one, and full timed YDS (Yabancı Dil Bilgisi Seviye Tespit Sınavı) mock tests.
More Advanced Grammar, Clauses and Connectors questions
- By the time the high-speed rail line ---- next December, civil engineers ---- on its tunnel network for over eight years.
- ---- the global semiconductor shortage persisted, vehicle manufacturers were forced to suspend assembly lines for several weeks.
- Had the emergency brake systems ---- inspected regularly, the catastrophic mechanical derailment ---- prevented.
- ---- the tremendous logistical hurdles caused by mountainous terrain, the relief convoy reached the isolated village in record time.
- The research team was unsure ---- the microbial sample had degraded during transcontinental refrigeration or had been contaminated.
- Not only ---- the international treaty on carbon emissions, but they also pledged billions toward green transition funds.