While intelligent people can often ________ the complex, a fool is more likely to complicate the simple.
| A．sacrifice | B．substitute | C．simplify | D．survive |
I can’t find my dictionary now. Tom must have taken it by mistake,?
| A．mustn’t he | B．doesn’t be | C．didn’t he | D．hasn’t he |
While watching television, .
| A．the doorbell rang |
| B．we heard the doorbell ring |
| C．there was someone knocking at the door |
| D．we heard the doorbell rung |
In face of failure, it is the most important to keep upgood state of mind.
| A．a; 不填 | B．不填；a | C．the; 不填 | D．不填；the |
—What did shefor so much money.
—Nothing but a few CDs.
| A．pay | B．spend | C．buy | D．prepare |
Just imagine performing such an opera as Turandot in the Forbidden City there _____ be a better setting!
| A．mustn’t | B．shouldn’t | C．couldn’t | D．needn’t |