----- I'm going to San Francisco for a couple of days.
------ ________. I wish I could get away for a while.
A. It doesn't matter B. Forget it
C. I really envy you D. I can't agree more
It’s surprising that your brother _____ Russian so quickly—he hasn’t lived there very long.
A. picked up B. looked up
C. put up D. made up
According to scientists, our mental abilities begin to ___ from the age of 27 after reaching the highest level at 22.
A. differ B. shrink C. fail D. decline
"It's such a nice place," Mother said as she sat at the table______ for customers.
A. to be reserved B. having reserved
C. reserving D. reserved
His writing is so confusing that it’s difficult to make out _______ it is that he is trying to express.
A. that B. how C. what D. who
Whatever is left over may be put into the refrigerator, _____ it will keep for two or three weeks.
A. when B. which C. where D. while
