问题
选择题
I saw Mary ____ the house.
A．open the door and go into
B．to open the door and to go into
C．open the door and to go into
D．open the door and went into
答案
答案：A
本题考查非谓语动词。感官动词see sb do sth看到某人做某事，表示动作的全过程。句意：我看到玛丽开门并进了那个房子。