Mary is _________ a visit _________ China.
A: on... at
B: on... in
C: on... to
A: on... at
B: on... in
C: on... to
举一反三
- Mary is _________ a visit _________ Chin A: on... atB. on... inC. on... to
- 在已有表中创建普通索引的命令是？ A: create index ... on... B: create uniqe index... on... C: create fulltext index... on... D: alter index... on...
- Are you busy on...? A: Host B: Guest
- Are you free on...? A: Host B: Guest
- As arranged, we have effected insurance _____ goods_____ 110% of the invoice value ____ all risks. A: on... for..., against B: to... of..., with C: for..., for ..., with D: on... for..., for