Evidence has been piled up________ drinking water after getting up in the morning contributes to one’s health.
| A．what | B．which | C．if | D．that |
The men will have to wait all day _____ the doctor works faster..
| A．if | B．unless | C．whether | D．that |
I often have conversations with John over _____telephone, while I keep in touch
with Tom by _____letter.
| A．/; the | B．the; / | C．/; a | D．the; a |
. ---Would you mind my sitting on the seat beside you, sir?
---______.
| A．Sure, with pleasure | B．Yes, help yourself |
| C．I’m sorry, but it’s taken | D．Well, never mind |
This kind of stone _____ cool in summer and warm in winter.
A. is being felt B. is felt C. feels D has been felt
Mother _____him to give up smoking, but he wouldn’t listen.
| A．promised | B．permitted | C．persuaded | D．advised |