The two countries will restore full diplomatic relations now that they have _____ their long-standing border dispute.
A. settled
B. concluded
C. dissolved
D. confined
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My parents have absolute trust in my sisters and me. They' ve never interfered with or ______on our friends.
A. made sure
B. took care
C. thought over
D. checked up
Before the advent of ______ fibers, people had to rely entirely on natural products for makingfabrics.
A. applicable
B. flexible
C. synthetic
D. invariable
Once you have had the disease you are _______ from it for the rest of your life.
A. rid
B. immune
C. deprived
D. void
To survive in the intense trade competition between countries, we must _______ the qualitiesand varieties of products we make to the world market demand.
A. harness
B. improve
C. guarantee
D. gear