I don’t have to introduce him to you ________ you know the boy..
| A．until | B．unless | C．since | D．but |
I think _____necessary（必要的） to learn English well.
| A．its | B．it | C．that | D．that is |
____ were all very tired, but none of ____ would stop to take a rest.
| A．We, us | B．Us, we | C．We, our | D．We, we |
He got up ____ yesterday morning.
| A．lately | B．late | C．latest | D．latter |
The apple tasted ____.
| A．sweets | B．sweetly | C．nicely | D．sweet |
The weather ____.
| A．wet and cold | B．is wet and cold | C．not wet and cold | D．were wet and cold |