THE OWNERS 30OF SMALL SHOPS HAVE BEEN CONCERNED ………..A NEW MALL...

30. - FIRST SEMESTER EXAM GRADE 8
Lớp 8 Tiếng Anh FIRST SEMESTER EXAM GRADE 8
30. The owners 30of small shops have been concerned ………..a new mall ………a month.A. about / for B. in / since C. on / for D. about / since