11. After the conference, they gave us ________ ride to _________ Capital Airport.（变式题）
A. the; a B. a ; the C. /; a D. /; the
12. Some websites are designed to instruct people how ______ a position in foreign companies. （变式题）*
A. to apply for B. to stand out C. registering for D. bidding for
13. Busy _______ she is, Rita ______ two hours every Sunday afternoon to spend with her son. (原创题)**
A. though, sets out B. as, sets aside C. as, sets down D. though, sets off
14. As we all know, it takes ten years to grow trees but a hundred to rear people, which means it will be ________ one becomes a useful person.. (变式题)*
A. before long B. long after C. after a long time D. long before
