________ much media attention is paid to the topic of raising children or caring for elderly parents in their final years, it seems ________ not much is explained on being a parent.
---Have you read the timetable ? ---Yes . The train ____ at 10:12 p.m..
Do you know __________ ?
The message is very important, so it is supposed _______ as soon as possible.
Visiting _______ Great Wall is ________ unforgettable experience to me.
---- Do you surf the Internet a lot? ---- Well,_______, I’m too busy with work to surf the Net.