Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.

.--Why didn’t you join us last night?--I _________ the close game of CBA final between Xinjian and Guangdong.

 Choosing a college major can be a difficult task, but it is nothing to take         .

Harry, did you attend the dancing party________ at Jack’s house the other day?

______ he told us is the news _______ China has got 32 gold medals in the 28th Olympic Games in Athens, _________, of course, made the nations feels very excited.