Over time,__________custom of kissing developed as_______way for adults to express their love for each other.
| A．a; the | B．a; a | C．the; the | D．the; a |
It doesn’t make any sense for us to _______ foreigners on public occasions, which will in turn make them _______ you.
| A．stare at; glare at | B．look at; gaze at | C．observe; glance at | D．glare at; watch |
In order to encourage the workers to work hard, the manager decides to award _______ produces the most in the factory.
| A．who | B．whom | C．whomever | D．whoever |
I’d like to study law at university ________ my cousin prefers geography.
| A．as | B．though | C．while | D．for |
Almost all the students were having classes when the earthquake _________.
| A． broke out | B． put out | C． came out | D． got out |
______ more attention, the tree could have grown better.
| A． Given | B． To give | C． Giving | D． Having given |