单句语法填空

1.You will be successful in the interview once you have               (confident)．

2.Many Europeans               (explore) the continent of Africa in the 19th century.

3.He is superior             me in dealing with others.

4.There was an               (awkwardly) silence，when no one knew what to say.

5.What's your               (impress)of the new teacher?

—He is a kind and handsome young man, but what               (impress)me most is his sense of humour.

6.The position had to be filled by an officer senior              Tom.

7.             (frighten) children were calling for their mothers.

8.Wouldn't you feel rather              (annoy) if you rushed to the airport to meet your friends only to find that they had already been picked up by other people?

9.Helen is anxious              travelling on her own.

10.The experiment               (design) to test the new drug.

11.He exchanged an apple              an orange.