There are so many kinds of Mp4 in the shop. We can’t decide .
| A．to buy what | B．what to buy | C．to buy which | D．which to buy |
It’s really nice of you ________me with Chinese problem
| A．to help | B．help | C．helped | D．helping |
---What a beautiful coat. How much is it?
---It didn’t ________ much. It's only 80 yuan.
| A．cost | B．take | C．spend | D．pay |
_______careful you are, ________mistakes you will make.
| A．The more, the more | B．the more, the less |
| C．The more, the fewer | D．the less, the less |
__________ I was talking on the phone, my mother arrived at home.
| A．when | B．until | C．while | D．although |
--- Do you have any plans for this weekend?
--- I am not sure. I ________ go to visit my grandmother.
| A．must | B．need | C．can | D．may |