. Niagara Falls is a great tourist________, drawing millions of visitors every year.
A. attention B. attraction C. avenue D. altitude
.You can’t see through the telescope until it ______ to your eyes.
A. contributed B. guaranteed good C. is similar D. is adjusted to
.Please tell me how the accident _______.I am still in the dark.
A. came by B. came about C. come out D. come up
.Having heard the customers’ ________, they decided to improve their products.
A. complaints B. sacrifice C. arrangement D. suffering
Everything he ________ away from him before was returned to his hometown.
A. took B.had been taken C. had had been taken D. had taken
The quality of the teachers will influence the students,and ________, the quality of the students will influence the teachers.
A. as a result B. in vain C.in turn D. in time
