With a large amount of equipment________ ,the boss asked the employees to work extra hours.
American English is more or less different ____British English ____ pronunciation and spelling.
Some people are good at _____ voices on the phone while others ______.
Pandas are native ______ China.
No product is allowed to go into the market if it fails to _____ the quality standard.
When was it _____ your parents took you to Hangzhou?