--_______ will the meeting last?
--_______ they reach an agreement.
| A．How long; Not until | B．When; Not until |
| C．How long; Until | D．When; Until |
--What were you doing at 9 o’clock last Sunday morning?
--I ________.
| A．did my homework | B．am doing my homework |
| C．do my homework | D．was doing my homework |
The accident ________ a windy night last year.
| A．took place in | B．took place on |
| C．happened in | D．happened on |
--How about your English?
--I found ________ hard to learn it well.
| A．that | B．it | C．this | D．one |
He looks upset. He doesn’t know ________.
| A．what to do it | B．how to do it |
| C．how to do | D．do what |
Mrs. Smith eats _______ meat, so he is ________ fat now.
| A．too much, too much | B．much too, too much |
| C．too much, much too | D．much too, much too |