感官動詞
感官動詞 : see, watch, look at, listen to, hear, feel, notice.
VR (整個動作，開始到結束 / 事實)
S + 感官動詞 + O (受詞) Ving (動作的當下)
Vpp (受詞的被動)
We all noticed Tom ___________ (wear) a strange hat.
Visitors in a city can often hear a singer __________ (sing) songs in a square.
I saw some kids ___________ (run) into the room.
I watched the old lady ___________ (get) in the taxi.
They felt the ground _____________ (shake) when they were watching movies last night.