Hainan celebrated(庆祝)her twentieth birthday ____ April 26,2008. A. in B. at C. on
The door is __________ narrow for the elephant __________.
— Mmm, the meat __________ well and __________ good! — Of course! You know my father is a good cook.
The librarian told us that we could borrow at most three books __________.
— Why do English people talk so often about the weather when they start a conversation? — Because the weather is a __________ subject.
Checking your answers before handing in your paper can help you __________ mistakes.