After entering university, we will reach a point in our studies       _________we need to decide how to arrange our timetable efficiently and independently. 

His mother kept telling him to____ his manners at the party.So he became impatient. 

We’ve made up our mind to finish this experiment no matter ___ difficult it was.

If it ______ tomorrow, I’ll go hiking with my friends.

—How about camping this weekend, just for a change?—OK, ______ you want.