They were all standing on the playground, white suit.
| A．all wearing | B．all wore |
| C．all were wearing | D．all of whom wearing |
No one _______ the building without the permission of the policeman.
| A．is leaving | B．will be leaving | C．has left | D．is to leave |
The new bridge is ________ the one built last year.
| A．three times as wider as | B．three times the width of |
| C．three times the width | D．as three times as |
She ________ down her book and ________ in bed.
| A．laid; lay | B．lay; laid | C．lay; lay | D．laid; laid |
Some researchers believe that there is no doubt _______ a cure for AIDS will be found.
| A．which | B．that | C．what | D．whether |
To write his paper, he tried hard to collect _______ information as he could.
| A．many of | B．a great many | C．the number of | D．a large amount of |