I couldn’t work out this problem ________ my teacher helped me.
| A．before | B．unless | C．because | D．until |
Dave has ___friends here, so he often stays at home by himself and feels lonely.
| A．a little | B．little | C．few | D．a few |
--- It's so cold today.
--- Yes, it's___ colder than it was yesterday.
| A．some | B．more | C．very | D．much |
___ is important for us___ English well.
| A．That; to learn | B．This; learning |
| C．It; learning | D．It; to learn |
--- Did Tony buy___ for his mother?
--- Yes, he did.
| A．anything special | B．special something |
| C．something special | D．special anything |
--- Doctor,___do I have to take the medicine?
--- Three times a day.
| A．how often | B．how many |
| C．how long | D．how far |