We have entered a world where robot operations become true with 5G technology．
Hard to believe! Scientists are full of which leads to great changes in our life．（ ）
A．attractionB．invention
C．positionD．contribution
We can't making a plan．Clean﹣up Day is only two weeks from now．
Yes，I think so．（ ）
A．put onB．put upC．put offD．put out
Which song do you like better，Maria？
I prefer the song Manual of Youth is sung by TFBOYS．（ ）
A．whichB．whoC．whomD．where
Must I go to law school and be a lawyer like you，Dad？
No，you _____，son．You're free to make your own decision．（ ）
A．can'tB．mustn'tC．shouldn'tD．needn't
I'm sorry I ________ my exercise book at home this morning．
It doesn't matter．Don't forget ________ it here this afternoon．（ ）
A．left；to takeB．forgot；bringing
C．left；to bring
Can you catch what I said？
Sorry，I can understand it because you speak very quickly．（ ）
A．almostB．probablyC．mostlyD．hardly