There is______ “u” and ______“r” in the word “umbrella”.
A.a, a | B.a, an | C.an, a | D.an, an |
The math problem is so hard, I really don’t know _____.
A.how to do it | B.how to do |
C.what to do it | D.when to do |
--- Shall we call a taxi?
---- Ok, Let me ______ the phone number in Yellow Pages.
A.look at | B.look for |
C.look up | D.look after |
_____ there may be sharks near the beach, people still swim there.
A.Since | B.But | C.As | D.Although |
The school isn’t far ________ my home. It’s just ten minutes’ walk.
A.out | B.off | C.at | D.from |
Wherever he meets a new word, he will _____ in his English dictionary.
A.look at it | B.look it up |
C.look through it | D.look it down |