11. she’s upstairs ____ a letter.
A writes B is writing C write D writing
选D
12. it was so cold that they kept the fire ___all night.
A to burn B burn C burning D burned
选C
13.the speaker raised his voice but still couldn’t make himself ___
A hear B to hear C hearing D heard
选D
14. _______ a reply, he decided to write again.
A not receiving B receiving not C not having received D having not received
选C
15.the salesman scolded the girl caught ___ and let her off.
A to have stolen B to be stealing C to steal D stealing
选D