With so many evidence against him he had to____ his errors openly.
| A．refuse | B．acknowlege | C．declare | D．recognize |
Be ____ to finish your homework before supper.
| A．shy | B．sure | C．nervous | D．serious |
His proposal is very _____. We do not need any explanation.
| A．abstract | B．faithful | C．loyal | D．concrete |
— I stayed at a hotel while in New York .
— Oh , did you ? You ____ with Barbara .
—
| A．could have stayed | B．could stay | C．would stay | D．must have stayed |
He ____ you more help even though he was very busy .
| A．might have given | B．might give | C．may have given | D．may give |
— What has happened to Tom ?
— I don''t know . He ____ lost .
| A．could get | B．might yet | C．can have got | D．may have got |