You won't work out the problem ______ you understand it. So listen to me explain now.
| A．since | B．when |
| C．unless | D．though |
Helen got up too late this morning, so she went to school _____ breakfast.
| A．without | B．through | C．for | D．with |
— I have great ________ in finishing the work by myself. Could you help me?
— No problem.
| A．fun | B．success | C．advice | D．difficulty |
Could you tell me _______？
A. who wants to be a pilot
B. who do you want to help
C. whose eraser is this
There are about _____ students in the school, and ____ of them are boys.
A. two thousand, three fifth
B. two thousand, three fifths
C. two thousands, three fifths
I have got some wonderful photos of the boy_______ the guitar on the left.
A. which play B. who plays C. that play