Unluckily, when I dropped in , Dr. Smith ____, so we only had time for a few words.
A.was just leaving | B.has just left | C.had just left | D.just left |
You'll miss the train ______ you hurry up.
A.unless | B.as | C.if | D.until |
When you read the book, you' d better make a mark _____ you have any questions.
A.at which | B.at where | C.the place | D.where |
We'd better hurry ______ it is getting dark.
A.and | B.but | C.as | D.unless |
I didn' t manage to do it _____ you had explained how.
A.until | B.unless | C.when | D.before |
_____ he comes, we won't be able to go.
A.Without | B.Unless | C.Except | D.Even |