Many sewage system in the main cities of the country ...

[ Subordinating Conjunctions ]

Many sewage system in the main cities of the country are cleaned up before rainy season _____ garbage clogs the pipes.

A. than

B. which

C. because

Select your answer:

Random Topics:
Grammar - Present and Past Passive Present Perfect and Past Simple Conditional Sentences Verbs + Gerund or Infinitive Modals - Conditionals - Future Tenses Modals - Reported Speech - Conditionals Noun Quantifiers Active-Passive Voices Subjunctive

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