--When did your father come back last night?
--He didn't come back _______ he finished all the work.
A. until B. while C. if
Be _______. Make sure not to make the same spelling mistake next time.
| A．peaceful | B．careful | C．helpful | D．thankful |
I heard him _______ the piano in the next room at 10:00 last night.
| A．played | B．to play | C．playing | D．plays |
－ Do you know some butterflies taste with their feet?
－ _______ I can't believe it.
| A．Yes, you're right. | B．Oh, I think so | C．Are you sure? | D．Oh, really? |
It was difficult for me to _______ this morning because I slept too late last night.
| A．wake up | B．go up | C．pull up | D．pick up |
－ Mum, why _______ some water?
－ Good idea. I am feeling a little thirsty.
| A．not stop drinking | B．not stop to drink |
| C．don't we stop drinking | D．not we stop to drink |