4.I want to open an online shop( ) it is a promising career.

9.Our company()change its business model for a better development.

8.What is our company going to()tomorrow?

7.The pipes should()plastic.

6.We wanted to ask why users would()this product.

5.Our system can()different application programs.

4.She has()in business as a hairdresser.

3.Sometimes， a reply could()a debate.

2.We()ourselves()providing integrated logistics(物流)services for our clients.

1.Many young students decide to have a gap year before they()college.

5.Safety should always be the top priorit ()(where) we are.