你帮助朋友在书桌下找到了他的尺子，你应该说：(   )

A．It’s on the desk.

B．It’s under the desk.

C．It’s in the desk.

读一读，选择正确的单词填空。
【小题1】Welcome ___________(to/in) our school.
【小题2】Our library is __________(on/in) the first floor.
【小题3】This is the __________(teachers/teachers' ) office.
【小题4】—How many _________(student/students) are there in your class? —Forty-two.
【小题5】—_________(Is/Are) that the computer room? —No, it isn't.
【小题6】—_________(Are/Do) you have a computer room?  —Yes, we do.

看图，完成句子，将正确答案的序号填入括号里。
【小题1】—Who’s this boy?  ( )
—He’s my ________.

A．grandpa

B．brother

【小题2】—What’s this?  ( )
—________.

A．My new pencil box.

B．My new crayon.

【小题3】—Where is the pen?  ( )
—It’s____________.

A．on the desk

B．under the desk

【小题4】Look, the boy is ________. The girl is ________.  ( )

A．tall; short

B．short; tall

Where does Jim go to school ________Shanghai? (   )

A．in

B．on

C．at

I can’t see you. Please stand  Peter. (   )

A．beside

B．on

C．under