Wasps look similar（) bees.A onB inC toD at

Japan lies （) the east of China.A. onB. inC. toD. at

A．onB．inC．withD．by

【30】A．onB．inC．offD．with

A．onB．inC．asD．near

【C5】A．onB．inC．fromD．at

Many thousands have benefited______the new medical system.A．onB．inC．toD．from