4. Have you ever _____ to Sapa? *
A. go
B. been
C. visit
D. went
6. Singapore is cleanest city in the world. *
Choose the word or phrase that needs correcting.
A. is
B. cleanest
C. in
D. the
7. Do eat much meat because it isn’t good for you. *
Choose the word or phrase that needs correcting.
A. Do
B. eat
C. because
D. for
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