—Shenzhou-18 with three astronauts was sent up on April 25th, 2024. It's such ____ exciting event. —Yes. And the astronauts are our heroes. I want to be ____ useful person like them.

1. —Shenzhou-18 with three astronauts was sent up on April 25th, 2024. It's such ____ exciting event.

—Yes. And the astronauts are our heroes. I want to be ____ useful person like them.

A. a,an B. an,a C. a,the

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单选题普通

1. The poor little girl never dreamed of living in such ____ European palace one day.

A. a B. an C. the D. /

单选题容易

2. Mike is ____ honest boy. We all trust him.

A. a B. an C. the

单选题容易

3. Yang Zhenning throws himself to science. He sets ____ example for young people.

A. a B. an C. the D. /

单选题容易