I would appreciate ____ if you could give me a lift.
16. Charles Babbage is generally considered _______ the first computer.
15. __________ made his mother worried.
14. His careless driving _________ the traffic accident. That is, the traffic accident was ______ his careless driving.
13. -- The organizer didn’t make ________ clear who would be the winner of the competition. -- He did. Whoever __________ to the top of the mountain will win.
12. -- Did Alan enjoy seeing his old friends yesterday? -- Yes, he did. He ________ his old friends for a long time.