英文文法(高手請進!)

正確答案，可能大家都會知道是What should we do?
但為甚麼是What should we do?呢
這是因為，在英文的直接疑問句裏，都慣用倒裝法(inversion)，所謂倒裝法，就是將動詞或助動詞置於主詞(subject)前面。除了在問句裏，英文裏，其實我們也常見倒裝法，如：
Here comes Peter!
Away went the runners.
Standing in the doorway was a man with a gun.
So am I
Never before had I been asked to accept a birbe.（以前從來也沒有人試圖向我行賄）

還有很多很多情況下，都會用倒裝法。
但若問題裏有另一個問題，則第二個問題不用倒裝。如：
Do you know what we should do?

或者間接疑問句裏，也不用倒裝，如：
He asked me what we should do.
這樣解釋，希望你明白！

What should we do? -----> is correct
Because you are asking question. This is English grammar.