Without the friction (摩擦力) between feet and the ground, people would ______ be able to walk.
The cruelty of the Germans towards the Jews and________of the Japanese towards their prisoners, filled ____with horror.
—How much of his speech did you think you understand?—_____.I wish I had worked harder.
For many seniors in some universities, the final year can be an unpleasant experience, ____that ends the campus romance.
--Oh,Tom! You are too late. ---Sorry. How I wish I_____measures Mr Smith suggested to leave ten minutes earlier.
---Good Heavens? My glasses are broken. Who did it? ---______.