A smile costs _________，but gives so much．So we should learn to smile．（ ）
| A． |
something |
B． |
anything |
C． |
nothing |
D． |
everything |
David is really ________ after the 1000-meter race, so he has to take a rest.
| A． |
worried |
B． |
bored |
C． |
tired |
—Judy practices her oral English hard every day.
—So she does. She pronounces words ________ than before.
| A． |
clearly |
B． |
more clearly |
C． |
most clearly |
—________ is the biggest blue whale?
—As I know, it weighs about 181, 000 kilos.
| A． |
How heavy |
B． |
How long |
C． |
How wide |
Using AI tools in the right way can help ________ to work better.
| A． |
we |
B． |
us |
C． |
our |
A special festival was held ________ September 23rd last year to honor the hard work of Chinese farmers.
| A． |
in |
B． |
for |
C． |
on |