This passage is mainly about ______.

(单选题)If you suspect that the illness might be serious, you should (单选题)They will travel to Singapore next month ______ they have en (单选题)All things ______, the planned trip will have to be called o (单选题)In the following four words, the underlined letters have the (单选题)Near the table ______ a poor dog, who desired to satisfy his (单选题)Napoleon is famously said ______, “When China wakes, it will (单选题)But for The Belt and Road Initiative introduced in 2013, Chi (单选题)The meanings of many idioms ______ be very different from th (单选题)At present, there are many instances ______ the governments (单选题)The New York Times, ______ world-famous newspaper, conducted