It is difficult for us to learn a lesson in life _______ we've actually had that lesson.
| A．when | B．after | C．since | D．until |
Amy always at 6:30, but she late today.
| A．gets up; get up | B．gets up; got up |
| C． get up; gets up | D．got up; got up |
People _________ many trees so elephants are losing their homes.
| A．cut down | B．blow out |
| C．cut up | D．put up |
— ________ does your mother go to work?
— She usually goes to work in a car.
| A．What | B．When | C．Where | D．How |
— When ______ he buy his bike?
— Two years ago.
| A．do | B．did | C．does | D．will |
I can’t play basketball after school because I ______ do my homework first.
| A．have | B．can | C．must | D．may |