She racked her brains trying to _____ the maths problem. A. work up B. work down

I tried to be pleasant to her but she gave me the cold_____.A．faceB．handC．shoulderD．back

（) her and then try to copy what she does.A. MindB. SeeC. Stare atD. Watch

She can hardly avoid making mistakes in her homework, ______hard she tries.A．forB．asC．howD

She tried to make up for her shabby treatm

She tried to make up for her 【shabby】 treatment o

The more he tried to help her ____________she see