Many a professor__________looking forward to visiting Germany now.Many scientists
__________studied animals and plants in the last two years.
| A．is; have | B．is; has | C．are; have | D．is; are |
. Look! There is a whole crowd of people over there. Go and see what_____ and if it is a bargain, buy it.
A is sellingB is being soldC has been selling D has been sold
---- Father, why do you always make me do exercise every morning?
-----_______ good health.
A Gain B GainingC To gain D Having gained
With a series of strange phenomena_____ , people living in the small village began to suspect that the earthquake was coming.
A to happenB happeningC happened D being happened
---- Isn’t it a surprise that I happened to meet Francis Mathews at the Christmas party last week、
----- If my memory serves me correctly, you _____ each other for exactly two years.
A hadn’t seenB haven’t seen C didn’t see D don’t see
---- You shouldn’t have played such a joke on him.
---- Sorry, I _____ that he would get so angry.
A don’t expect B hasn’t expected C didn’t expect D hadn’t expected