I approve ___ your trying to make some money, but please don’t neglect your studies.
A. on B. in
C. for D. of
The hotels launched new services to cater ____ the growing number of Chinese visitors to the region.
A. to B. in
C. on D. for
He is having a party ____ celebration of his 84th birthday.
A. in B. on
C. of D. at
–Who told you about the result of the exam?
–The teacher _______.
A. in charge B. on charge
C. at charge D. in the charge
Old-fashioned phones matter when wireless networks break ____ in disasters.
A. out B. down
C. in D. up
When we saw the road _____ snow, we decide to spend the holiday at home.
A. blocking up B. blocked up
C. blocking with D. blocked with