When first __________ to the market, the computer software was not a success due to its complexity in operation.
| A．introducing | B．being introduced |
| C．introduced | D．to be introduced |
Studies shows that people are more __________ to suffer from back problems if they always sit before computer screens for long hours.
| A．likely | B．possible | C．probable | D．sure |
It is said that his new apartment is ________ the old one. Which one can’t be used?
| A．three times larger than |
| B．three times as large as |
| C．three times the size of |
| D．as three times large as |
If he continues like this, he will ____________ a stone only to have it drop on his own foot, just as the old saying goes.
| A．end up to lift | B．end up lifting |
| C．end up in lifting | D．end up with lifting |
I would appreciate ______, to be frank, if the goods could be delivered as soon as possible.
| A．you | B．this | C．it | D．myself |
He ________ to Shanghai, for I saw him a moment ago.
| A．must have gone | B．can’t have gone |
| C．mustn’t have gone | D．can’t have been |