About _______ gene-targeting drugs are already in testing pipeline. It won’t be long ______ they are put into effect.
| A．two dozen; before | B．two dozens; that |
| C．two dozens of; before | D．dozens; that |
--- Why not go and have dinner in a restaurant?
--- _________. It’s too expensive.
| A．Why not | B．I agree | C．I’m afraid not | D．I’m sure |
Some people are against the plan but _______ support it.
| A．any more | B．many more | C．much more | D．no more |
--- Can you climb that tree, my boy?
--- __________ ?
| A．I | B．Myself | C．Mine | D．Me |
_________ always succeed.
| A．Honest and clever students | B．Students who honest and clever |
| C．Honest students and clever | D．Students are honest and clever |
--- What’s Joan doing?
--- _________ newspapers in the room.
| A．She reading | B．She reads | C．To read | D．Reading |