----She must have gone back to the valley. ----No, she _____. The entrance to it was nowhere to be found. A mustn’t B needn’t C couldn’t D hadn’t
I’m preparing the report for tomorrow. Would you please __________ the radio a little?
Though I’m older than you, I still feel we have a lot __________.
Look! Tom is too sleepy to work. He __________ up watching TV.
Though we __________serious natural disasters, we are sure to overcome all difficulties.
Alice was too surprised to hold her __________.