—I’m afraid I must be off now.
—_________.
| A．No problem | B．Never mind |
| C．Step slowly | D．See you |
170. Believe in yourself and be _____ you are.
| A．which | B．who | C．whom | D．What |
171. She works seven days a week, and six of _____ until one o’clock at night.
| A．that | B．the time | C．which | D．Them |
172. --- Where did you see him?
--- It was in the hotel ______.
| A．where he stayed | B．that he stayed | C．in that he stayed | D．which he stayed |
173. --- I’m glad you like the food. Please come over any time you like.
--- ________.
| A．Is it all right? | B．I’m afraid I won’t be free | C．Yes, I will | D．That’s great. |
174. We will be shown around the city: schools, museums, and some other places, ______ other visitors seldom go.
| A．what | B．which | C．where | D．When |