6.Have you ever been to London ?

--> Thì HTHT ( CNV ) : Have / Has + S + V3 / PII ?

---> Đặc điểm nhận dạng : ever

7.Peter doesn't usually get up before seven

--> Thì HTĐ ( CPĐ ) : S + don't / doesn't + V

--> Đặc điểm nhận dạng : usually

8.Our friends often write tests

--> Thì HTĐ : S + V s / es / không s , es

--> Đặc điểm nhận dạng : often

9.They sometimes go swimming in the lake

--> Thì HTĐ : S + V s / es / không s , es

--> Đặc điểm nhận dạng : sometimes

10.The weather is always bad on November

--> Thì HTĐ ( ĐT Tobe ) : S + be + adj / n

--> Đặc điểm nhận dạng : always

`#  FF`

.Have you ever been to London ?

ever

7.Peter doesn't usually get up before seven

usually

8.Our friends often write tests

often

9.They sometimes go swimming in the lake

: sometimes

10.The weather is always bad on November

always