单选题 They ___ going to the park tomorrow.

单选题 There ___ some books on the desk.

单选题 Yang Ling___ ten years old.

单选题 She___ a college student.

单选题 I ___ very happy yesterday.

单选题 This ___ a new car which is made in China.

单选题 I ___ a teacher.

单选题 The cat ___ on the chair.