【C17】A．in returnB．in turnC．on the turnD．at every turn

A．in return B．in turnC．by hand D．in silence

Joan and Jane are twins,but they have few interests（) .A in orderB in turnC in generalD

The three children looked after their sick mother______.A．in returnB．by turnC．in turnD．in

【C3】A．in returnB．in turnC．by handD．in silence

【C17】A．upB．downC．aroundD．in

If she wants to stay thin, she must make a （) in her diet.A. changeB. turnC. runD. go