Hey，Daniel．You should not drop litter so___________．
| A．careful | B．carefully |
| C．careless | D．carelessly |
To remember things accurately, we don't allow other thoughts our mind.
| A．enter | B．to enter | C．entering | D．entered |
If you travel around the world, you will be surprised at ________.
| A．how different the foreign customs are |
| B．how the foreign customs are different |
| C．how different are the foreign customs |
| D．how are the foreign customs different |
-__________ has Line 22 (From Jinshanwei Station to Shanghai South Railway Station) been open to traffic?
| A．How far | B．How soon |
| C．How long | D．How much |
I ________this book for about a month, so I have to return it as soon as possible.
| A．have borrowed | B．have kept |
| C．have bought | D．have posted |
He his baby every day because his wife is very busy.
A puts on B. dresses C. wears D is in