21．This book is said to be a special one, which____many events not found on other history books.
| A．writes | B．covers | C．instructs | D．conveys |
In my ________, playing hickey is more interesting than playing football.
| A．mind | B．idea | C．opinion | D．belief |
Was it eight o’clock _______ you got to the cinema yesterday evening?
| A．that | B．which | C．until | D．when |
---Each of the students working hard at their lessons ________ the book.
---- So have I.
| A．is reading | B．has read | C．read | D．reads |
--- I let my secretary call you several times. Do you know that?
---- I _______ in a meeting. I’m sorry.
| A．had been | B．was | C．am | D．have been |
He finally refused to ________ his plan of travelling the world.
| A．give off | B．give up | C．give to | D．give in |