----- In recent years,___ problem of global warning has been very serious.
------That’s right. People are facing ____ number of natural disasters now.
| A．不填; | B．a; the | C．the; a | D．a; a |
— I promise her daughter ____ get a nice present on her birthday.
— Will it be a big surprise to her?
| A．should | B．must | C．would | D．shall |
It is obvious to the students ________ they should get well prepared for their future.
| A．as | B．which | C．whether | D．that |
I didn’t hear the phone. I ___ asleep.
| A．must be | B．must have been |
| C．should be | D．should have been |
This monument was built ______ the little hero.
| A．in place of | B．in search of |
| C．in memory of | D．in need of |
We do morning exercise every day, from which we ______ a lot.
| A．strengthen | B．gain | C．award | D．benefit |