It will be many years ______the doctors and medical scientists can find _____ for cancer.
| A．since; cures | B．when; treatments | C．before; cures | D．until; treatments |
various
| A．programme | B．distance | C．pattern | D．parent |
nurse
| A．sugar | B．usually | C．phrase | D．precious |
secret
| A．envy | B．perfect | C．fever | D．encourage |
—Are all the titles of the articles in the contents?
—Yes, all.
| A．listed; included | B．listing; includes |
| C．listed; including | D．being listed; being included |
Esme’s website, and you’ll get a list of children’s books for different age groups.
| A．Visiting | B．To visit | C．Visit | D．Having visited |