改现在完成时

问题描述:

改现在完成时
将下列各句写成现在完成时.
(1)The teacher wrote some new wrods on the blackboard.
(2)I finished my homework.
(3)They didn't have lunch.
(4)I washed my clothes.
(5)I didn't do my homework.

(1)The teacher has written some new wrods on the blackboard.(2)I have finished my homework.(3)They haven't had lunch.(4)I have washed my clothes.(5)I haven't done my homework.