I'm very sorry， Dad． I failed the math test．
_____．You've tried very hard．（ ）
A．You're welcomeB．Sounds good
C．That's for sureD．Never mind
In Chinese families， people won't start dinner ___________the elders take their seats．（ ）
A．afterB．whenC．becauseD．until
Teachers expect all their students ___________progress day by day．（ ）
A．to makeB．makeC．to takeD．take
Is this hat_______________？
No， the red one is_________．（ ）
A．Lucy's； herB．Lucy； her
C．Lucy's； hersD．Lucy； hers
Please remember to _________the electricity and water before you leave the laboratory．（ ）
A．take offB．shut offC．go offD．put off
Li Lei didn't play computer games last weekend．__________，he worked as a volunteer in an old people's home． （ ）
A．InsteadB．CertainlyC．ThoughD．Gradually