1 . 听下面一段独白，回答以下小题。
1. What is the speaker mainly talking about?

A．A search engine.

B．A language program.

C．A free lesson website for teachers.

2. How many people use Duolingo currently?

A．Over one hundred million.

B．A few hundred thousand.

C．Several thousand

3. Where is Luis von Ahn from?

A．Switzerland.

B．Guatemala.

C．Costa Rica.

4. How was Duolingo originally funded?

A．By big websites.

B．By an actor.

C．By schools.

2 . 听下面一段较长对话，回答以下小题。
1. What did Fitbit say about the recent study?

A．It was false.

B．It hurt their business.

C．They had no comment.

2. When does the man use his Fitbit?

A．Only when he’s exercising.

B．During the daytime.

C．All the time.

3. What does the man think of his Fitbit?

A．It’s sometimes uncomfortable to wear.

B．It’s a good value.

C．It is of little use.

4. How does the woman sound?

A．Interested.

B．Bored.

C．Upset.

3 . 听下面一段较长对话，回答以下小题。
1. Where did the tomato sauce come from?

A．A local farm.

B．A store only five miles away.

C．The man’s own tomatoes.

2. What does the woman think of cooking?

A．She enjoys it.

B．It makes her feel creative.

C．She doesn’t have the patience for it.

4 . Why is the museum of great significance?

A．It’s a museum for old art.

B．It will be built on a small island.

C．It’s the first of its kind in Indonesia.