All passengers _____go through safety check before they take a plane．（ ）
| A． |
can |
B． |
may |
C． |
must |
D． |
ought |
_______ do you communicate with your foreign friends？
By writing e﹣mails．（ ）
A．HowB．WhyC．WhereD．When
Pass me the dictionary， please． I want to __________ some new words．
A．look forB．look up
C．look afterD．look through
If you want to try some local food， don't _________ the food festival this weekend．（ ）
A．missB．carryC．holdD．bring
Daily homework is necessary，__________ too much homework may bring harm to students．（ ）
A．soB．butC．forD．or
Happy birthday， Mr．Wang! Here are some presents from ________ of us．
Thank you so much， boys and girls!（ ）
A．bothB．neitherC．eitherD．all