—Why didn’t you finish the task? —I didn’t think it is ________ the effort.
A. worthwhile B. deserving C. valuable D. worth
It was hard for him to fit in a new class, in which ______ he was familiar with.
A. each B. neither C. both D. none
We all think that the plan you come up with ____________ the work is very practical.
A. completing B. completed C. to complete D. complete
They can find whatever they need in the supermarket, ______ is always busy on Sundays.
A. which B. when C. where D. who
Beyond the lake _____ quantities of birds coming from the North every winter.
A. flies B. flying C. flied D. fly
Referring to reading, we must have the patience to read ______ book so that we will have _______ deep understanding of it.
A. the; the B. a; a C. the; a D. a; /
