Great changes _______ in our country since 1990.
| A．were taken place | B．took place |
| C．have taken place | D．have been taken place |
____________ on doing sports every day, and you'll have a healthy body.
| A． |
Keep |
B． |
To keep |
C． |
Keeps |
D． |
Keeping |
-Kate, could you tell me ____________ the toy bear?
-Oh, I bought it at a night market near Guilin Road.
| A． |
where you bought |
B． |
where did you buy |
| C． |
when you bought |
D． |
when did youbuy |
Students often ____________ their best wishes on the blackboard before graduation.
| A． |
cut down |
B． |
pull down |
C． |
write down |
D． |
die down |
The 2022 Olympic Winter Games ____________ in Beijing and Zhangjiakou.
| A． |
hold |
B． |
held |
C． |
is held |
D． |
will be held |
Zhong Nanshan is a medical expert ____________ saves lives and is always honest.
| A． |
which |
B． |
who |
C． |
what |
D． |
whose |