高二英语问题请为我解释一下选择各题正确项的原因,谢谢!1.The teacher left the class in a

高二英语问题
请为我解释一下选择各题正确项的原因,谢谢!
1.The teacher left the class in a hurry(B).
A.as if she angry B.as if angry
C.as if was she angry D.as if be angry
2.Time (C),I will go to Mount Tai to relax myself.
A.permit B.permitted
C.permitting D.to permit
3.This dance is known (C)country music.
A.performed by B.performing with
C.to be performed to D.being performed in
4.(A)to understand what he doesn't,he makes a fool of himself.
A.Always pretending B.Always pretended
C.Having alwayspretended D.Always being pretended