The old man has two daughters. _______ are doctors.
A. Both of whom
Both of which
C. Both of them
D. All of them
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If you travel in a foreign country, a tour _______ may save you a lot of trouble.
A. guide
B. helper
C. assistant
D. doctor
Dinner will be ready _______. Let’s go and wash our hands.
A. at all
B. just now
C. all around
D. right away
If you _______ smoking and drinking, your health will improve soon.
A. gives up
B. gave up
C. give up
D. giving up
This new style of sports shoes is very popular and it is________ in all sizes.
A. got
B. available
C. active
D. famous