David was bad at his studies, so when I was told he did well in the final exam this time, I found it really ______.

_____ the steep mountains，he had no difficulty reaching the top.

-- Mike spends a lot of his spare time on computer games.--- So does my son. The children have become hopelessly ________the games.

I had to call a taxi because the box was ______ than I’d expected.

Recent efforts towards the greening of our cities have achieved much,although the results are still  far from____.