My cousin graduated from a normal university ten years ago and __________ as a teacher ever since.
| A．has worked | B．works |
| C．worked | D．had worked |
Paris has some great museums ______ visitors can see fine works of impressionist painters.
| A．where | B．which | C．that | D．when |
I’ve made several travel plans for our vacation, but I’ll leave it to you ______ one.
| A．choosing | B．chosen | C．to choose | D．choose |
My father warned me going to the West Coast because it was crowded with tourists.
| A．by | B．on | C．for | D．against |
Based on a true story, the film shows a hero racing ______ time to get back the stolen papers.
| A．behind | B．against |
| C．about | D．at |
Many people have donated that type of blood; however, the blood bank needs _____.
| A．some | B．less | C．much | D．more |