____ difficult the task may be, we will try our best to complete it in time.
| A．No matter | B．No wonder | C．Though | D．However |
.His words were_____out by loud cheers from the crowd
| A．drowned | B．cried | C．expressed | D．crowded |
.—We usually go hiking for vacation. I like it, but I want to try something more challenging this year.
—___________
| A．Let’s go | B．Cheer up | C．Like what ? | D．Take care |
Could people become infected______HIV by swimming in a pool or sitting in a bath?
| A．with | B．of | C．into | D．to |
.—I’d like to book a room for tonight.
—Sorry, sir, but we don’t have any rooms______at the moment.
| A．available | B．useable | C．suitable | D．comfortable |
. The school of the future will probably be quite different from_____they are today.
| A．that | B．what | C．which | D．ones |