There is no doubt _______ international cooperation is the key to _______ with cyber crime.

With a lot of problem ________, the newly – elected president is having a hard time.

Excuse me, could you tell me how to Beijing Zoo—–Well, you may take Bus No.27.

The two men refused to pay the bill because they were not satisfied with the_______.

______ that the Belt and Road Initiative will benefit China’s economy, we are optimistic ____ the future of the country.