The school rules state that no child shall be allowed out of the school during the day, accompanied by an adult.
| A． | once | B． | when | C． | if | D． | unless |
He is rather difficult to make friends with, but his friendship, _____ is more true than anyone else’s.
| A．Once gaining | B．Once gained | C．Once is gaining | D．Once he gained |
______ and you will be admitted into your desired university.
| A．If making one more effort | B．If you make one more effort |
| C．One more effort | D．To make one more effort |
— Can I speak to _____ is in charge of the company?
— Hold on, please.
| A．whomever | B．who | C．whoever | D．whose |
It’s already 10 o’clock. I wonder how it ____that she was 3 hours late on such a short trip.
| A．came across | B．came out | C．came up | D．came about |
_______ never to come back again, the girl left the poor village without saying goodbye.
| A．Determined | B．Determining | C．Determine | D．To determine |