He’ll never forget his stay in the park ________ he found his cellphone which had gone missing days before.
-----I forget the name of an old school friend at the party. -----_____. It must have been very embarrassing.
It is reported that Russia uses____ energy as Uklaine.
----Have you seen Tom and Mary? ----I haven’t seen____ of them.
I rang you several times yesterday but couldn’t____.
----I think you look nice in the red dress. ----____.