My sister isn’t in. ________ she comes back, I’ll let her call you back.
| A．While | B．Until | C．Before | D．When |
Where’s my watch? I it.
| A．look | B．meet | C．take | D．need |
—Are they on the desk?
—
| A．Yes ,it is | B．No , they are |
| C．Yes, they are | D．Yes ,they aren’t |
联合国的英文缩写是。
| A．UN | B．NBA | C．CBA | D．HB |
—What color is it ?
—.
| A．white ruler. | B．Red. |
| C．A red color. | D．black ruler. |
This is room. My hat is on the chair.
| A．I | B．your | C．he | D．my |