1.                  The manager told me to pass _________ the message I had just read.

A. to                               B. on                           C. in                            D. for

2.                  It was unprofessional ____ her to wear casual clothes to the international conference.

A. for                    B. to                        C. of                  D. as

3.                  Bat Trang Ceramic Village is facing up________ the lack of artisans

A. in                               B. with                    C. on                      D. to

4.                  Son Doong Cave will be ____ ruins if the cable car system is constructed.

A. on                              B. in                            C. at                            D. out            

5.                  Clean air provides us ………. a healthy supply of oxygen.

A. with              B. to                      C. on                       D. in