I won’t go to Zhang Wei’s birthday party ________ I am invited.

We wondered __________ this afternoon.

If you are looking for a fully-furnished room to rent, I think there’s a(n) _______ apartment in my building. [ ]

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

‘ Time ____ will never be found again!’ Icouldn’t help talking to myself