______ you spell your name —K-E-L-S-E-Y.

It is reported that America offered to help usbuild aircraft carriers — But many citizens would rather ourcountry __________ one by ourselves

Rarely _____ possible to have twins twice. [ ]

33．When problems such as energy crisis, pollution and population explosion_________, people are asked to share the bitterness and endure the hardship with all the whole nation of the times．

Walking alone in the dark, the boy whistled to________his courage.