16. ---Is ______ here?
---No, Tom and Jack have asked for leave.
A. anybody B. everybody C. somebody D. nobody
17. Maria is _____ American girl. She can play _____ volleyball very well, but she can’t play ______ piano.
A. an; the; the B. a; /; the C. an; / ; the D. a; the; /
18. ---What will the weather be like tomorrow ?
---It _______ be rainy, cloudy or sunny. Who knows ?
A. must. B. may C. shall D. should
