bantuannya plissss yg mana aja

2a. i can speak english quite well.
b. he may come tomorrow.
c. you should exercise more.

3a. the door is opened by him.
b. the poem was learned by najib.

4a. saya sangat ingin tahu tentang penyebab asma.
b. apakah ada kemungkinan saya mendaftar sebagai perawat di rumah sakit ini?