问题

If only I ________ driving before.
A:learn
B:learned
C:had learned
D:would learn
B:learned
C:had learned
D:would learn
正确答案是:
同类题型
such circumstances, it is little ________ thatthey experience difficulties
Hi, Jane. What time do you get up _____ weekdays—I usually get up _____ about six o’clock.
As we all know, _________ car is becoming _________ popular way of transportation in big cities.
the project be finished as planned— Sure. itcompleted in time, we’ll work two more hours a day.