习近平谈到设置南京大屠杀死难者国家公祭鼎的目的,就是要向世人宣告“昭昭前事,惕惕后人”、“永矢弗谖,祈愿和平”的心愿。中国举办国家公祭日纪念仪式,说明( )
___ had they reached the 30th floor ____ they realized that they had forgotten to take the key.
Bungee is an adventurous sport, popular with young adults, ______ courage matters more than strength.
The public has complained that large quantities of waste water ______ into rivers without being cleaned, so large amounts of money ______ to solve the problem.
. The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
Many young people in the West are expected to leave ______ could be life's most important decision --- marriage --- almost entirely up to luck.