This morning I went to work in such a hurry that I___________ the key to my office at home.

UK Prime Minister Cameron has become the first world leader ______ to fly onboard Air Force One with US Prsident Obama.

I am sure David will be able to find the library – he has a pretty good ____ of direction.

Peter speaks Chinese well indeed，but of Course not ______a local speaker in China．

s very angry with Kelvin yesterday.— I know your feelings, but if you forgive him, you ______ a bigger man.