A major concern among archaeologists today is the preservation of archaeological site, ..... are threatened by development
ক) of which many
খ) many of which
গ) many of them
ঘ) which many
বিস্তারিত ব্যাখ্যা:
The phrase 'many of which' is a non-restrictive relative clause that correctly modifies 'archaeological sites'. It connects the two ideas smoothly. 'many of them' would create a run-on sentence.
Related Questions
ক) The novel is read by him
খ) Let the novel be read by him
গ) Let the novel should read by him
ঘ) He read the novel
Note : The structure for making such sentences passive is 'Let + object + be + past participle (+ by + agent)'. Following this rule, 'Let the novel be read by him' is the correct passive form.
ক) round
খ) in
গ) out
ঘ) to
Note : The phrasal verb 'come out' means 'to be published' or 'to become available'. In the context of a new book, this is the correct phrase. 'His new book will come out next week' means it will be published next week.
ক) He asked me did I pass.
খ) He asked me if I passed
গ) He asked me if I have passed.
ঘ) He asked me if I had passed.
Note : When reporting a 'yes/no' question from the past, we use 'if' or 'whether'. The reporting verb is in the past ('asked'), so the verb in the reported clause must also be in a past tense. If the direct speech was 'Did you pass?' (simple past), in reported speech it becomes past perfect ('if I had passed').
ক) simple sentence
খ) complex sentence
গ) compound sentence
ঘ) None of these
Note : The sentence has a main clause ('I know') and a subordinate clause ('that he will come here soon') which is a noun clause acting as the object of the verb 'know'. A sentence with one main clause and at least one subordinate clause is a complex sentence.
ক) I wish I had the wings of a bird.
খ) I had the wings of a bird.
গ) I should have the wings of a bird.
ঘ) May I have the wings of a bird
ক) come to grief
খ) end in smoke
গ) come to blow
ঘ) fall short
Note : End in smoke' একটি idiom যার অর্থ হলো কোনো প্রচেষ্টা বা পরিকল্পনা ব্যর্থ হওয়া বা নিষ্ফল হওয়া (to come to nothing). যেমন: His great scheme ended in smoke.
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