commissary in charge of publicity

The experiment in physics is Prof Strong．__________

A．in’charge of

B．taking charge of

C．in the charge of

D．taking the charge of

He is ________ this company.

A、in charge of

B、in the charge of

C、under the charge of

A.in charge of

B.in the charge of

C.under the charge of

A. charge for

B. in charge of

C. take charge of

D. charge with

4. Who is____personnel at present？

A.in the charge of B.under charge of

C.under the charge of D.in charge of 