We can fly kites on _______ days.
| A．rainy | B．snowy | C．cold | D．windy |
Write down the phone number, __________ you’ll forget it.
| A．so | B．and | C．but | D．or |
We can get fresh water from rain, from rivers, or from ________ the ground.
| A．across | B．under | C．over | D．off |
They develop their skills _________ they can do things better and better.
| A．however | B．because | C．since | D．so that |
He was late this morning, because the bus was too ________ for him to get on.
| A．quiet | B．tidy | C．crowded | D．noisy |
_________ is celebrated on September 10’.
| A．National Day | B．Teacher’s Day | C．Dragon Boat Festival | D．Spring Festival |