It’s _____ hard problem for the twins that ____ of them can work it out.
| A．so; neither | B．such a; neither | C．so a; neither | D．such a; none |
---______ shells do you have? ---Over 100 so far.
| A．How far | B．How often | C．How many | D．How soon |
---______ did you first skate? ---Two years ago.
| A．What | B．When | C．Why | D．How |
We are going to have a party ______ money for the poor people.
| A．to give | B．to raise | C．to pay | D．to buy |
Sorry, Jim. I don’t have ______ time ______ with you. --- That’s all right.
| A．enough, to play | B．much, playing | C．enough, playing | D．many, to play |
---______ have you been in class today? ---For two hours.
| A．How often | B．How long | C．How many | D．How soon |