_____ it is a good thing I did not get the post I had applied for, though I must admit that I was disappointed at the time.

______ two giraffes，Zheng He later brought zebras，shells，elephant ivory back to China after his voyages.

 The ship sailed _____ Xiamen _____ 30 miles an hour.

President Obama declared America was not and never would be ____ war _____ Islam.

 Before selecting the curtain for your newly decorated house, it's important to know what colors look great ________ the wallpaper.