El Nino is an upsweeping of warmer water off South American coast which ______ globalweather patterns.
A. effects
B. interrupt
C. interferes
D. affects
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I remember ____________ the letter for you several days ago.
A. having posted
B. posting
C. to post
D. to have posted
A branch floating in the water ____________Columbus' hopes that land was near.
A. get rid of
B. went back on
C. gave rise to
D. caught his eye
Only when he had handed in his exam paper he had made several mistakes.
A. he has realized
B. does he realize
C. has he realized
D. did he realize
The party the students looked forward to yesterday afternoon.
A. was held
B. being held
C. was to be held
D. was being held
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