Look! They ______ about the solution to the network problems again．（ ）
| A． |
argue |
B． |
are arguing |
| C． |
argued |
D． |
were arguing |
________do you go to the library？
Twice a week．（ ）
A．How soonB．How longC．How oftenD．How far
What is the___________of your excellent Taiji？
Practice makes perfect!（ ）
A．resultB．purposeC．choiceD．secret
What do you think of Mr．Liu？
He is quite_________， but he is good at telling funny stories．（ ）
A．friendlyB．patientC．seriousD．humorous
Oh! Mum， where's my notebook？ I_______find it．（ ）
A．can'tB．needn'tC．shouldn'tD．mustn't
Linda______her mother．
Yeah． Both of them have curly hair and blue eyes．（ ）
A．looks likeB．looks at
C．looks afterD．looks for