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 |
When spring comes，trees begin to _____ green．（ ）
| A． |
sound |
B． |
taste |
C． |
keep |
D． |
turn |
I'm sorry．I broke your tea cup．
________．I have another one at home．（ ）
| A． |
It doesn't matter |
B． |
You'd better not |
| C． |
My pleasure |
D． |
It's too bad |
Chen Wei isn't at school today ________ he is taking a robot competition in Shanghai．（ ）
| A． |
so |
B． |
because |
C． |
before |
D． |
if |
It was late．She opened the door ________ because she didn't want to wake up her grandma．（ ）
| A． |
angrily |
B． |
quietly |
C． |
loudly |
D． |
heavily |
Meimei is going to be an older sister．Her parents are planning to have their ________ child．（ ）
| A． |
one |
B． |
two |
C． |
first |
D． |
second |