Which one of the following is a complex sentence?
A Let them do this or they will die.
B If he helps us, we shall win.
C Move or you will die.
D Work hard or you can't prosper in life.
Solution
Correct Answer: Option B
যে sentence এ একটি principal clause এবং একাধিক subordinate clause -who, which, where, though, if, as, because, until, so that ইত্যাদি দ্বারা যুক্ত হয় তাকে complex sentence বলে ।
যেমন - If he helps us, we shall win.