(Q).
Read the following conversation and answer the question. W: Shall we go to the zoo on foot? M: Why don't we go by bike? It's faster. Question: How will they go to the zoo? - On foot. - By bus. - By bike.
(A).
By bike.

(Q).
Read the following conversation and answer the question. M: You must have left the camera in the market. It's a very good camera you know, Sandie. W: But I tell you I didn't take it. I remember clearly that you put it on the dressing table. Question: What do you know from the conversation? - The camera has been left in the market. - The camera is on the dressing table. - The camera has disappeared.
(A).
The camera has disappeared.

(Q).
Read the following conversation and answer the question. W: Excuse me, when did you arrive here, Mr. Wang? M: I arrived here an hour ago. Question: How long has Mr. Wang been here? - He arrived here three hours ago. - He's been here for an hour. - He came here half an hour ago.
(A).
He's been here for an hour.