________, you need to give all you have and try your best.
---Mum, I’m going to visit my aunt. What about a week? ---A week is too long. Try to be back in ____of days.
Michael Jackson _____as “King of Pop” was announced dead on June 25th,____ the world.
---Did you have a sound sleep last night? --- Yes, never slept ________.
---Where have you been recently? --- I _______ in Hangzhou on business for a week last month.
Encourage your children to try new things but try not to ______them too hard.