It won’t be long ______ self-driving cars appear on the market.
A. until B. after
C. when D. before
From 1902 to 1904, Picasso, the twentieth-century’s greatest western artist, painted a series of pictures _______ the main color was blue.
A. when B. that
C. where D. which
The more I think about him, the more reasons I find for loving him _______ I did.
A. as much as B. as long as
C. as soon as D. as far as
Reduce it ______ half each month and before you know it, you will not be thinking of it anymore.
A. to B. by
C. in D. for
He felt satisfied; he could _______ the way she looked that if he pushed her hard enough she would come in with him.
A. care about B. believe in
C. tell by D. give up
When ______ to danger and conflict, men tend to increase blood pressure, feeling nervous or anxious.
A. expose B. exposed
C. to expose D. exposing