-- Sir, could you please wait for another 20 minutes and we’ll serve you very soon.-- Another 20 minutes? It was only 6 o’clock ________ I got here, but it’s 7∶10 now.
You will succeed in the end ________ you give up halfway.
Not until the train pulled into the next station _______her suitcase gone.
The heavy fog in London made _______deep impression on us, which was sometimes so heavy that we lost ________sight of everything.
Thegovernmentshouldprotecttheoldvaluablebuildings____theyarenotin harmonywiththemodernonesnearby.
We used to see each other, but I haven’t heard from him since last year.