The little boy is dirty from head to foot because he ________ in the mud all morning.

　　A. has played　　　　　　　　　　 B. is playing

　　C. has been playing　　　　　　　　D. was playing

 The little boy is dirty from head to foot because he ______ in the mud all morning.

E－mail,as well as telephones,　　 an important part in daily communication.

A.is playing　　　　　　　　　　　B.have played

C.are playing　　　　　　　　　　D.play

The little boy is dirty from head to foot because he______in the mud all morning.

　 A. has played 　      B. is playing

　 C. has been playing 　 D. was playing

The little boy is dirty from head to foot because he ________ in the mud all morning.

　　A. has played　　　　　　　　　　 B. is playing

　　C. has been playing　　　　　　　　D. was playing