He ______________（从事） in teaching in recent years and is an experienced teacher.
举一反三
- He is an (experienced) businessman; he has (engaging) in foreign (trade) for a few (years). A: experienced B: engaging C: trade D: years
- He is a teacher. I am a teacher, too.______ he and I are teachers.
- He is _____ experienced teacher in our school. A: a B: an C: the D:
- In recent years, more and more foreigners are involved in the teaching programs of the United States. Both the advantages and the disadvantages
- He has become the experienced teacher. A: Predicate B: Object C: Attributive D: Adverbial