Some of my friends are interested in science, but none of them can tell ________.
— 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.
It’s kind __________ Yao Beina to donate her corneas (眼角膜) _________ three people in need.