Read and match. 阅读下列问句,从右边的选项中选出合适的答语,并把它答案的编号写在题前的括号里。
( ) 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