He felt ________ when hearing that he had been admitted into the school badminton team. Which answer is WRONG

entists can exactly figure out what ________ happened ________ at that time, which caused the extinction of the dinosaurs.

The managers discussed the plan that they would like to see __________ the next year.

Why don’t you get thebook –That’s ____.

Not until I began to work ______how muchtime I had wasted.