In the United States, Father’s Day is on _______ third Sunday in June.
| A．a | B．an | C．the | D．/ |
The couple ______at this time yesterday. Nobody knew when they stopped.
| A．heard quarrelling | B．heard to quarrel |
| C．were heard quarrelling | D．was heard to quarrel |
Millie is______ clever a girl that she has worked out _______difficult math problems.
| A．so; so | B．such; such | C．so; such | D．such; so |
Did your father tell you ______?
| A．when he travelled to Hong Kong | B．how he goes to Shanghai |
| C．where he has spent his holidays | D．why did he visit Hangzhou |
—I’m afraid that I can’t do it.
—Oh, you should believe in yourself. You won’t know what you can do______ you try it.
| A．if | B．because | C．until | D．while |
Before I talked with ______ scientist, I had never met______ clever person like him.
| A．the; a | B．a; a | C．the; the | D．a; the |