Chia động từ trong ngoặc: a) It is dangerous .... near the stove (go). b) Lan was happy ... the letter from friend (receive)

Chia câu bị động 
a) Mary cleans the window everyday 
b) She make the cake 
Chia động từ trong ngoặc 
a) It is dangerous .... near the stove ( go)
b) Lan was happy ... the letter from friend ( receive)