【C12】A．convenientB．worthwhileC．unfortunateD．expensive

Solar cooking is a _______cooking method.A、convenientB、convenienceC、convention

He is a teacher（) of respect.A worthB worthwhileC worthyD worthly

【C12】A．subjectB．subjectiveC．objectsD．objectives

【C12】A．outwardB．apartC．asideD．outside

【C12】A．attentionB．noticeC．interestD．attraction

【C12】A．theB．aC．anD．／