(2017·北京) Jane moved aimlessly down the tree-lined street, not knowing ______she was heading.
A. why B. where
C. how D. when
-I can't believe it． Tom failed the test again!
-He would not be so upset now your advice．
A. would he follow B. should he follow
C. did he follow D. had he followed
Difficult as rumours on social media are _______，the government will step up supervision （监管）so that people will not be easily misled．
A. preventing B. to be prevented
C. to prevent D. being prevented
-Where is my suitcase？
-Somebody_______it away by mistake．
A. must have taken B. could take
C. should take D. must take
-I hear that Jean is planning to buy a car．
-I know． By next month， she_______enough for a used one．
A. will have saved B. will be saving
C. has saved D. saves
I will think about how Stephen Hawking managed to live a normal life and made great achievements _______my life feels unbearable．
A. whenever B. however
C. whichever D. wherever
