Last night Dad and Mum didn’t come back home I finished my homework.
A. while B. if C. until
When they look back on the past few years, many people wonder ______.
| A．where time has gone | B．where has time gone |
| C．where time will go | D．where will time go |
The driver was very happy that his car ______ very well in this car-washing centre.
| A．cleans | B．cleaned | C．was cleaned | D．is cleaned |
— I didn’t know you were friends with Mr. Smith.
— We ______ each other for6 years.
| A．knew | B．are known | C．have known | D．will know |
When I was a boy, I often ______ to play in that park.
| A．went | B．have gone | C．go | D．will go |
— ______ do you go to the gym?
— Once a week.
| A．How far | B．How often | C．How long | D．How soon |