A dictionary is a book ______ gives the meanings of words.
| A．which | B．who | C．whom | D．whose |
The old town has narrow streets and small houses ________ are built close to each other.
| A．they | B．where | C．what | D．that |
Do you want a friend ______ you could tell everything to?
| A．which | B．whose |
| C．whom | D．he |
—May I see your ticket, please? I think you ________ in my seat.
—Oh, sorry. My seat is upstairs.
| A．are sitting | B．sit |
| C．sat | D．have sat |
The teacher told the kids that light ________ faster than sound.
| A．traveled | B．had traveled |
| C．is traveling | D．travels |
