Make sure to turn off the gas after you take a bath, which would ___ cause danger.
| A．therefore | B．somehow | C．otherwise | D．meanwhile |
.Niagara Falls is a great tourist _____, drawing millions of visitors every year.
| A．attention | B．attraction | C．appointment | D．arrangement |
.YaoMing, as we know,_____ like to play basketball.
| A．does | B．appears | C．feels | D．sounds |
--You are always full of ____. Can you tell me the secret?
--Take plenty of exercise every day.
| A．Power | B．strength | C．force | D．energy |
.-- I’m planning to go abroad for further study in the coming autumn.
--____ you are there, you might get some help from my sister.
| A．If | B．Since | C．As | D．While |
The factory has developed a lot____ we visited the advanced worker five yeas ago.
| A．when | B．which | C．that | D．where |