Evidence obtained from observation and experiment is often used to _____ a scientific theory.
— What did she want to know, Tom? — She wondered ____ we could complete the experiment
— Don’t be disappointed. Have another go, OK? — ____.
Every student in our class had an application form in his hand, but no one knew which office _____.
— Why is the librarian looking so hard at me? — You ____ to read aloud in the reading room
____ we have finished the course, we shall start doing more revision work. A. For B. Now that D. By now D. Until