Every spring, the park becomes ______ colourful place with lovely flowers everywhere, which is ______ absolutely fantastic sight.

It is important for us___________ Chinese history.

ourse is of great interest to students, _____ to improve their writing skills.

y what weighs us down are not the burdens oflife, but how we handle _______

Perhaps you ________ stop playing computer games now. Your boss may be turning up in the office at any moment.