I find it difficult to keep ________ of my old friends.
| A．company | B．track | C．touch | D．pace |
.Generally speaking, clothing made of man-made is less superior than_____made of natural fibers like cotton wool or silk
| A．that | B．this | C．what | D．One |
. You should treat him (in) the way ____ suits him most.
| A．that | B．in which | C．/ | D．why |
. The days we have been looking forward to ____ soon．
| A．coming | B．will come | C．came | D．have come |
. The person we spoke to ____ no answer at first．
| A．making | B．makes | C．make | D．made, |
. Before he went abroad，he spent as much time as he _____ English.
| A．could learning | B．learned | C．to learn | D．could learn |