— His passport shows that he ________Canada.
— Yes. He went there on business in spring and autumn last year.
A. has gone in B. has gone to C. has been in D. has been to
One of the important lessons children learn from their parents is ________
A. how speaking politely to others
B. how to speak politely to others
C. what time speaking politely to others
D. what time to speak politely to others
It is safe to eat chicken that ________fully, but most people still dare not do that because of the H7N9 bird flu .
A. will be cooked B. cooks C. is cooked D. cooked
More historical buildings in the old town will fall down ________we try our best to protect them.
A. if B. since C. unless D. in order that
— Do you know the young boy ________ is reciting a Tang poem over there?
— Yes. He's a friend of ________ .
A. which; mine B. who; me C. which; me D. who; mine
