（ ）16. Children often can’t the words right.
A. speak B. pronounce C. talk D. pronunciation
（ ）17．— What is our head teacher like, do you know?
— Oh, he is very kind _____ he looks very serious.
A. because of B. though C. even D. because
（ ）18．What a nice Mp5! Is it yours? ----Of cours e. I______300 yuan on it.
A. cost B. paid C. spent D. took
