【C13】A．certainB．someC．theseD．those

These products are superior（) those we bought last year.A toB ofC inD on

【C10】A．theirB．theC．thoseD．these

"These differences" in paragraph 5 refer to those in______.A．skills of men and womenB．scho

【C13】A．manyB．someC．alittteD．few

【C3】A．itB．heC．theseD．those

【C10】A．whatB．onesC．theseD．those