... lift 17 After (walk) _three hours we stopped (rest) _and let the others (catch) up with us 18 I am beginning (understand) _what you mean 19 The boy likes (play) ... thường dạng V1: make, let, help, notice, watch, hear, see, used t, had better, would rather, … II Gerunds (Danh động từ) a Form (Cấu trúc) Khẳng định: V+ ING Phủ định: NOT + V-ING Bị động: BEING ... People used (make) _fire by (rub) two sticks together 35 He hates (answer) the phone, and very often just lets it (ring) 36 If you go on (let) _your dog (chase) _cars...