Only by chance _________ that she had been stealing from us.
A did I discover
B I discovered
C discovered I
D ought I to be discovering
Solution
Correct Answer: Option A
Never, only, hardly adverb দিয়ে বাক্য শুরু হলে বাক্যের structure হয় adverb + auxiliary verb + sub + verb-এর base form । সুতরাং শূন্যস্থানের জন্য সঠিক অংশ did I discover ।