Robert is said ___________ abroad, but I don’t know what country he studied in.
| A．to have studied | B．to be studying | C．to study | D．to be studyed |
---Do you really think what he said was practical?
--- I don’t entirely agree, but ________.
| A．I don’t care | B．go ahead |
| C．just let it go | D．I doubt it |
Not having promoted the new digital camera successfully, the company should its original marketing methods.
| A．account for | B．reflect on |
| C．work out | D．call up |
So absorbed in his work ____________that not a sound ___________.
| A．was the president; did she dare to make |
| B．was the president; dared she to make |
| C．the president was; she dared make |
| D．the president was; she did dare to make |
My English teacher’s humor was ____ make every student burst into laughter.
| A．so as to | B．such as to |
| C．such that | D．so that |
---Turn off the TV, Jack, ______ your homework now?
--- Mum, just ten more minutes, please.
| A．should you be doing | B．shouldn’t you be doing |
| C．couldn’t you be doing | D．will you be doing |