Today many foreigners enjoy working or studying China．（ ）
| A． |
to |
B． |
by |
C． |
on |
D． |
in |
______ ！
I think so． He invented so many useful things．（ ）
| A． |
How silly the king is |
| B． |
How great Lu Ban is |
| C． |
What a clever girl Mary is |
| D． |
What smart boys they are |
I feel ______ after a night's good sleep．
Yeah， sleeping is the best way to relax．（ ）
| A． |
very tired |
B． |
more tired |
| C． |
less tired |
D． |
the most tired |
I can lend my bike to you ______ you promise lo take good care of it．（ ）
| A． |
while |
B． |
if |
C． |
although |
D． |
unless |
As far as we know， the 2022 Winter Olympics ___ in China．（ ）
| A． |
hold |
B． |
are held |
| C． |
will hold |
D． |
will be held |
The gift from my friend is getting old ______， but I still like it very much．（ ）
| A． |
usually |
B． |
suddenly |
C． |
slowly |
D． |
exactly |