问题

This machine is very easy ______. Anyone can learn touse it in a few minutes.
A:operating
B:to be operating
C:operated
D:tooperate
B:to be operating
C:operated
D:tooperate
正确答案是:
同类题型
Many people like ________ TV play You Who Came From the Stars very much.
—I could have arrived much earlier, but I ____ in the traffic.—What a pity![ ]
uncle, the boss of a shoe factory_____ me for a part-time shop assistant of the department store
Fifty dollars for such a T-shirt! You _______ bejoking!—I’m serious.It’s made ofsilk.