Follow your do
ctor’s advice,_____ your cough will get worse.
| A．or | B．and | C．then | D．so |
Here’s my card． Let’s keep in＿＿＿＿＿．
| A．touch | B．relation | C．connection | D．friendship |
We have worked out the plan and now we must put it into＿＿＿．
| A．fact | B．reality | C．practice | D．deed |
Three-fourths of the surface of the earth＿＿＿sea．
| A．is | B．are | C．were | D．has been |
If these trousers are too big, buy a smaller＿＿＿．
| A．set | B．one | C．copy | D．pair |
—— Did you find your pen this afternoon?
—— No, I didn’t find＿＿＿＿＿, but I’ve bought＿＿＿＿＿．
| A．it； it | B．one； one | C．it； one | D．one； it |