If you feel too tired while working, you’d better stop _______and have a rest.
A. work B. to work C. working
--- Didn’t your brother ________ go to school by bike?
--- Yes, he did. But he ________ walking to school now.
| A．used to; used to | B．use to; used to |
| C．used to; is used to | D．use to; is used to |
There’s no doubt _______ Emily will be the hostess (女主持) of the New Year’s party.
| A．if | B．when | C． what | D．that |
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 |