Bob never does his homework ________ Mary. He makes lots of mistakes.
| A．so careful as | B．as careful as |
| C．not as carefully as | D．as carefully as |
Mr. Green was_______ with the medal______his great achievement in this field.
| A．presented, because of | B．protected, because |
| C．prepared, because of | D．provided, because |
---Peterisnothimselfthesedays.
---well,couldyoutellme________?
| A．how is he feeling now | B．why was he so unhappy |
| C．what is wrong with him | D．that something worried him |
He realized his mistakes and took action to reduce the loss _______ it was too late.
| A．until | B．when | C．before | D．as |
Of the seven days in a week, Saturday is said to be the most popular _______ for a wedding in some countries.
| A．way | B．situation | C．choice | D．chance |
Peter tried on three jackets, but ____ of them fitted him.
| A．all | B．none | C．both | D．neither |