Help me mấy thánh tiếng anh It happened(20)___________ a Sunday morning just before the Chinese New Year. I(21) ________ to decorate our living room with paper lanterns and other colorful decorations. To put these decorations , I had to(22) _________ a ladder. However, I went to the storeroom (23) ________ brought out the old wooden one that we had. I climbed up to the top rung of the ladder, with a lantern in one ( 24) _________, a pair of scissors in the other and a reel of thread between my teeth. Just as I was reaching out to tie the lantern to a nail high on the wall, the step of the ladder(25) __________ me gave way. Taken completely by surprise, I fell to the floor with a heavy thump. I felt a sharp pain on my back as well as on my ankle 20. 1 điểm 20/ A. in B. on C. from D. for 21/ A. decided B. wanted C. needed D. must 22/ A. use B. get C. take D. need 23/ A. but B. and C. so D. though 24/ A. hand B.bag C. box D. can 25/ A. for B. with C. under D. to