I along the street looking for a place to park when the accident .
| A．went; was occurring | B．went; occurred |
| C．was going; occurred | D．was going; has occurred |
Spoken English slightly differs from country to country. For instance, in some parts of the US the “r” sounds at the end of the words______.
| A．is dropped | B．have dropped | C．has dropped | D．are dropped |
–The party will begin as soon as all the guests arrive.
—Look, here _____ all the guests!
. is coming B. are coming C. come D. comes
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 |
The employees were made to spend as much time as they could ______ more products to meet the _______ market.
| A．producing; growing | B．to produce; grown |
| C．to produce; growing | D．produced; grown |
You can see the bright Yaoming today, but can’t imagine what a hard time he hadhimself home and abroad before.
| A．training | B．trained | C．to train | D．train |