Vitamin C helps our bodies make a special chemical, which _______ affects our brains, making us feel happy.
| A．in all | B．in turn | C．in advance | D．in short |
It's nearly seven o'clock . Jack _____ be here at any moment .
| A．must | B．need | C．should | D．can |
______ professional violinist practises for several hours a day , but ______ violinist has his own way of playing the Beethoven concert .
| A．Each , every | B．Every ; each | C．All ; every | D．Either ; every |
The rescue team ______to help but failed to get there in time.
| A．had wanted | B．have planned | C．were expecting | D．hoped |
---Will you two go to the show tomorrow?
---No. We're going to a lecture, or at least I'm planning ____.
| A．it | B．to | C．that | D．so |
I'd love ___ to your party last Sunday if not because of the unexpected guests.
| A．to go | B．going | C．having gone | D．to have gone |