We have kept in __________ touch with each other for two years and he always gives me good advice on __________ phone.
| A．the; the |
| B．/；the |
| C．/；/ |
| D．the; / |
________ to overcome the difficulty，he works day and night．
| A．Determined | B．Determining |
| C．To determine | D．To be determined |
一Did he notice you enter the classroom?
一I don’t think so．He _______ to the radio with his eyes shut·
| A．1istened | B．was listening |
| C．has listened | D．had listened |
I think it’s impolite to play ______ trick on others just for ______ fun
| A．a：＼ | B．＼；a | C．the；＼ | D．a；a |
I have bought two ball pens ,______ writes well.
| A．none of them | B．neither of them |
| C．neither of which | D．none of which |
—— Oh, it’s raining hard outside. Mum, do you think the milkman will come?
—— Of course. He will come on time _____it rains.
| A．in case | B．even though | C．as long as | D．ever since |