It's said that the Weast Lake is one of the most beautiful lakes in China．Do you think so？
Yeach，I _____there twice bofore!It attracts lots of tourists from home and aboard．（ ）
A．have beenB．have goneC．goD．went
Some exchange students _______ with their host families this time yesterday．（ ）
| A． |
are chatting |
B． |
will chat |
| C． |
were chatting |
D． |
have chatted |
Nowadays people wish to have ______ food than before as their life improves．（ ）
| A． |
healthy |
B． |
healthier |
| C． |
healthiest |
D． |
the healthiest |
Alex believes he will soon be able to play chess as ______ as the computer．（ ）
| A． |
well |
B． |
better |
C． |
best |
D． |
the best |
Did the policeman give much _______ on how to protect personal information？（ ）
| A． |
note |
B． |
tip |
C． |
advice |
D． |
book |
_______ knowledge and experience are important to finish that task．（ ）
| A． |
Either |
B． |
Neither |
C． |
None |
D． |
Both |