We should take the rest of the food home______we can't finish what we order.
if
so
unless
until
Tom doesn’t like red pens, so he wants a blue _______.
The workers are planting some trees on ____ sides of the street. Although they are tired, ______ of them have a rest .
The boy is taller than_____ in his class.
Your watch is quite nice, where did you buy _____? I want to buy _____ too.
---Could we see each other at 9 o’clock tomorrow morning? --- Sorry , let’s make it _______ time.