He can the boys find the bookstore.
( ) Helen _____ a teacher. A. have B. had C. having
( ) She could _____. A. talking B. talk C. talks
( ) He came back ____ the earth. A. to B. of C. on
() I went to the airport ____ meet my father. A. to B. for C. with
()He spent about twenty-three _____. A. week B. hour C. hours