—Please tell me ________ for the meeting yesterday.
—Sorry.The traffic was bad.
| A.why you came late | B.why did you come late |
| C.when you came late | D.when did you come late |
The girl looked at me with a _______expression. Maybe the problem was quite ______.
| A.puzzled; puzzling | B.puzzling; puzzled |
| C.puzzled; puzzled | D.puzzling; puzzling |
Would you please ______ your statement again? I don’t understand what you were saying.
| A.classify | B.clear | C.clarify | D.charity |
---How long has the United Nations ________?
--- ______1945.
| A.come into existence; In | B.been in existence; Since |
| C.been in existence; From | D.come into existence; For |
Dr. Black is a professor of chemistry. _______, he is a famous writer.
| A.In all | B.In brief | C.In fact | D.In addition |
The new invention may __________a lot of changes in our daily life.
| A.result from | B.expose to | C.lead in | D.contribute to |