一Alex，go and clean your bedroom.
一I ________________ it.It's tidy and clean now.
A．have cleanedB．cleaned
C．clean
Trust______． You can do much better than you think．（ ）
| A． |
you |
B． |
your |
C． |
yourself |
D． |
yours |
I like taking a walk ______ the river after dinner．（ ）
| A． |
above |
B． |
on |
C． |
under |
D． |
along |
I can't find my ID card anywhere． What should I do？
______You can go to the Lost and Found．（ ）
| A． |
Don't worry． |
B． |
Come on! |
| C． |
Look out! |
D． |
Don't mention it |
Pardon me，I wonder ________．
I'm not sure．Maybe by bus．（ ）
| A． |
how he likes this new book |
| B． |
how Mrs． Smith fixed up her umbrella |
| C． |
how you can make fruit salad |
| D． |
how the students will get to the farm |
The four tools ______ people use for Chinese handwriting are called "Four Treasures of Study"．（ ）
| A． |
that |
B． |
who |
C． |
what |
D． |
whom |