There is a computer the desk.A. onB. inC. underD. for

问题补充：

There is a computer the desk.

A. on

B. in

C. under

D. for

答案：

(答案→)A. on

B. in

C. under

D. for

解析：句意：在书桌上有一台电脑。A. on 在……之上；B. in 在……里；C. under在……的下面；D. for 为了。结合句意，电脑应在桌子上。故选A。