— Have you played DotA before? We need one more team member.
— ________. But I like online games, so I believe it will be fun to learn DotA.
A. You must be crazy B. Not really C. Never mind D. That’s cool
It was about 600 years ago _______the first clock with a face and an hour hand was made.
| A．until | B．when |
| C．before | D．that |
If you_______ smoke, please go outside.
| A．can | B．should |
| C．must | D．may |
Every means _________tried but without any result.
| A．have been | B．has been |
| C．are to be | D．is to be |
Do you wake up every morning __________ energetic and ready to start a new day?
| A．feel | B．to feel |
| C．feeling | D．felt |
We must keep in mind the fact __________ China is still a developing country.
| A．whether | B．that |
| C．why | D．when |