在下面所给的动词中选出适当的一个，并用其正确的形式填入空格，使句子意思完整。每个动词只能用一次。

　(seize, accept, attract, paint, act, introduce, combine, speed up, compare, communicate)

79.Do you have any difficulty ________ with foreigners?

78.“Encyclopedia” is a word quite difficult to p________.

77.We must further a_______ the friendly relations between the two countries.

76.Nowadays, many students prefer popular music to c______ music.

75.WTO is an i_________ organization. China is one of its members.

74.The m________ of the population of China are farmers.

73.The CEO is c________ employing more technicians as the company is in short of skilled workers.

72. Van Gogh’s paintings always leave a deep i_________ on me.

71.As is known to all, rock-climbing is a very a________ sport.

70. I think it necessary to have c_______ from customers who are already using the computer.