Daniel，why are you so late? We _______ you would be here an hour ago— SorryI ________ know you were all here

Jack, you erase the blackboard today,______?—But I erased it yesterday.

Everyone has periods in their lives ______ everything seems very hard.

(2012·天津)It doesn’t matter ________ you turn right or left at the crossing—both roads lead to the park.

Life now is not so easy as it___________be, do you think so — Yes. I ___________ working sevendays a week to get more pay.