—Where is Jack?I can’t find him anywhere.
—He__________ his homework upstairs.
A.might have done | B.must have done |
C.must be doing | D.must do |
推荐套卷
—Where is Jack?I can’t find him anywhere.
—He__________ his homework upstairs.
A.might have done | B.must have done |
C.must be doing | D.must do |