21. The basketball coach, as well as his team, ______ interviewed shortly after the match for their outstanding performance.
A. were B. was C. is D. are
22. Sam has been appointed ______ manager of the engineering department to take ______ place of George.
A. /, / B. the, / C. the, the D. /, the
23. It doesn’t matter ______ you turn right or left at the crossing --- both roads lead to the park.
A. whether B. how C. if D. when
