The little boy is dirty from head to foot because he ________ in the mud all morning.
| A．has played | B．is playing |
| C．has been playing | D．was playing |
People should open the window in the morning to make air ______ in order to keep the indoor air fresh.
| A．spread |
| B．remove |
| C．float |
| D．circulate |
The government has given enough support so far. ______, we are sure that the plan will be carried out.
| A．However |
| B．Otherwise |
| C．Therefore |
| D．Besides |
- Does Shelly like shopping?
- Well, she would rather spend time ______ at home than ______ in the street.
| A．read; wander |
| B．reading; wander |
| C．in reading; to wander |
| D．reading; to wander |
It is reported that the drivers won’t go back to work until their demand for better pay ______.
| A．is to satisfy |
| B．is satisfied |
| C．will be satisfied |
| D．has satisfied |
We students should ______ ourselves with knowledge because of the fierce competition nowadays.
| A．supply |
| B．equip |
| C．relate |
| D．feed |