He met many problems _______ he was going over his lessons .
A: before
B: while
C: until
D: as soon as
A: before
B: while
C: until
D: as soon as
举一反三
- ____________ he was living in London that he met his wife Lucia. A: Soon after B: Just when C: It was while D: During the time when
- When did he go over his lessons A: At seven o’clock. B: At eight o’clock. C: Before eight o’clock. D: Before seven o’clock.
- They are busy ______ in their lessons before the exam. A: going after B: going over C: going by D: going ahead
- I hope to finish the work ________ A: until he will arrive B: until he arrives C: before he will arrive D: before he arrives
- John fell asleep ___ he was listening to the music. A: after B: before C: while D: as soon as