【推荐1】I heard the song ________ (sing) in English many times. (所给词的适当形式填空)

【推荐2】Listen! The song_________ (sing) is very popular with the students. (所给词的适当形式填空)

【推荐3】I heard her ________ (sing) when I passed by the music room. (所给词的适当形式填空)

【推荐1】Nature has provided our country with wealthy natural treasures,________(make) it a happy home for us. (所给词的适当形式填空)

【推荐2】Perhaps the next generation of scientists,________(draw) on the wisdom of traditional Chinese medicine, will indeed discover more medicines beneficial to global health care.（所给词的适当形式填空）

【推荐3】Burns are divided into three types,____________( depend) on the depth of skin damage. (所给词的适当形式填空)