I only intended to be there for a few days, but I ________ ended up staying for a whole month.

One learns a language by making mistakes and ______ them

Under the new schedule, school teachers must ______each class on time, instead of adding extra lessons.

ad prepared carefully for the exam, so that he could be sure of passing it on his first _______.

I found many people ________ on the benches at the endof the day，chatting.