______of the earth is covered with water.
A. three fourth
B.threes fourths
C.three fourths
Although I have much housework to do, ______ I still feel happy.
| A．but | B．and | C．/ | D．however |
My sister is very lazy. She _________ helps my parents with housework.
| A．usually | B．always |
| C．often | D．never |
Don’t worry, Tom. We have ___________ to do homework.
| A．time enough | B．enough money |
| C．enough time | D．money enough |
This food tastes ________, I love to eat it.
| A．good | B．well |
| C．bad | D．badly |
We can’t have PE class on the playground ________ the rain.
| A．because | B．because of |
| C．so | D．and |