问题

He seems ____ something valuable. He looks so worried.
A:has lost
B:to lose
C:to be losing
D:to have lost
B:to lose
C:to be losing
D:to have lost
正确答案是:
同类题型
What will Sally be ______ ten years?[ ]
Every Earth Day , We are made _____ signs to warn people to protect the nature .
Would your sister go to Hainan this summer?— If I don’t go, ______. [ ]
Generally speaking, my grandmother is nice and kind, but she _______ be very stubborn at times.
Let’s go to the zoo next week.—Why not go to the mountains? We can gothere.