.——The English teacher spoke so fast that I couldn't ________ what he said. ——He said there would be a discussion ________ the lecture.
I intend to buy this kind of pen because I the pen well.
twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
---Are you a teacher? ---No, but I _______.
Before he went abroad,he spent as much time as he _____ English.
As time went by, the plan he stuck ____ fairly practical.