You'd better walk down the corridor _____ you see the waiting area.
A: unless
B: as
C: until
D: if
A: unless
B: as
C: until
D: if
举一反三
- Turn left and go along the corridor until you see it sign-posted to the right.
- Walk down our street, ____(or,and)you’ll see kids playing.
- I’m afraid I can’t do the work well ________ to help me tomorrow. A: unless you will come B: unless you come C: until you will come D: until you should come
- You'd better hurry, ____ you might be late for class. A: or B: and C: unless D: but
- You’ll be fined for speeding ______ you drive at normal speed. A: unless B: as C: if D: until