A: How long did you stay here? A: About 10 dollars. B: About 10 o'clock. C: About 10 miles. D: About 10 days.

How long is the small intestine in an adult? A: About 7 m. B: About 70 cm. C: About 10 m. D: About 100 cm.

when did the accident happen ? A. at about 8:00 am B. at about 9:00am C. at about 10:00am

How long has the man been in America A: About 5 years. B: About 10 years. C: About 1 year.

How long is the appropriate time for eye contact with the interviewer？ A: about 20 seconds. B: about 30 seconds. C: about 10 seconds. D: about 5 seconds.

Listen to the following dialogue, and then choose the best answer for each question． A: About 5 minutes B: About 10 minutes C: About 15 minutes D: About 20 minutes

People should spend about 10 minutes ____________ with a 15-minute presentation.

It is reported that by the end of this month the output of cement in the factory _____ by about 10%.

A 10 percent increase in gasoline prices reduces gasoline consumption by about

It’s reported that by the end of this year the output of oil in the area ____________ by about 10%.