______did the rainstorm come， Mr． Liu？
While we_____a chemistry lesson yesterday afternoon．（ ）
| A． |
When； have had |
B． |
When； were having |
| C． |
While； are having |
D． |
While； have |
What happened to Billy？
He ___________ because of his drunk﹣driving．（ ）
A．is caughtB．was caughtC．has caught
The oranges ____________sweet．
Of course．They are from Yongxing，Chenzhou．（ ）
A．tasteB．eatC．drink
When is Father's Day in the United States？
It's on ___________third Sunday in June．（ ）
A．aB．theC．/
We have to say goodbye．_______ time flies!（ ）
A．WhatB．HowC．What a
The classroom ________ by the students every day．（ ）
A．cleanB．cleansC．is cleaned