I tried my best, but I couldn’t _____ the driving tests.

What do you think of the 3-D printer—It’s great although it still needs further .

Tens of millions of Internet users make mostof the half-price promotion and it isgoodopportunity for online shopkeepers to get their names known

_____ more about the city, you can buy this book to read.

It is when the planethat you’d better find out at the book office.