21£®Two team members ________£¬ we took over their work and stayed up late to complete the program.

A£®sent away B£®being sent away C£®to be sent away D. having been sent away

22£®The tax only affects people on incomes of over $200,000 — _____, the very rich.

A£®in addition B£®for instance   C£®in other words     D£®on the contrary

23£®Many people are beginning to care about the land, which ________ deserted by the farmers in the countryside in the past few years.

A£®was B£®is    C£®has been    D£®had been

24£®The books, as a matter of fact, ________ have greater influence on our life are those we read for “fun” and those considered “useless”£®

A£®which    B£®what    C£®that D£®Whether