The world has been shaken by a huge financial crisis since 2007; thanks to each country’s powerful policies, the international trade is improving _________ day by day.
— As we know, keeping positive is beneficial to the process of our work and study.
— You can say that again. Struggle not to let negative ideas_______.
On the morning of October 12, 1492, Christopher Columbus and his crew came to the shores of the Caribbean islands, mistakenly believing they ________ in Southeast Asia.