Câu hỏi: How ..................... do you brush your teeth?

A. many

B. often

C. old

D. time

Câu 1: My brother works ...................... a factory. 

A. on

B. in

C. with

D. between

Câu 2: Lan's classes start …….seven a.m. every day.

A. on

B. behind

C. at

D. in

Câu 3: Remember to follow_____all signs at the swimming pool. 

A. strict

B. strictly

C. careful

D. careless

Câu 4: How many tables does your classroom ................? 

A. there are

B. have

C. has

D. there is

Câu 5: ................... do you have math in class?

A. Where

B. When

C. How

D. What

Câu 6: The noise_____ me awake at night.

A. takes

B. keeps

C. gives

D. does