Experiments of this kind __________ in both the U. S. and Europe well before the Second World War.
A.have conducted |
B.have been conducted |
C.had conducted |
D.had been conducted |
The first African-American president of the United States received a(n) _____ welcome in the African countries, where he was received as a returning son.
A.romantic | B.bureaucratic | C.enthusiastic | D.optimistic |
Several years after they got married he ____ chatting on the Internet until very late, which eventually resulted in their divorce.
A.took on | B.came to | C.took to | D.came about |
A.hope; are bound | B.hopes; is bound |
C.hope; are due | D.hopes; is due |
Fireworks exploded during _____ opening ceremony of _____ 2011 Asian Cup football tournament at Khalifa Stadium.
A.the; a | B.the: the | C.a; a | D.a; the |
— Frank, I’ve learned your plan. Could I make some suggestions?
— ________.
A.Just for fun | B.Go ahead | C.With pleasure | D.Take it easy |