Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ a great service.
A.不填;a | B.the;a | C.不填;不填 | D.the;不填 |
If you___bright sunlight___dry wood with a magnifying glass,it will start burning
A.expose;to |
B.concentrate;on |
C.aim;at |
D.focus;on |
George is going to talk about the geography of his country,but I’d rather he___more on its culture
A.focus |
B.focused |
C.would focus |
D.had focused |
Computers and mobile phones,though they are indeed making our life___and more____,have reduced the need for face-to-face communications
A.easily;efficient |
B.easier;efficient |
C.easy;efficiently |
D.easily;efficiently |
I’m afraid he’s more of a talker than a doer,which is___he never finishes anything
A.that |
B.when |
C.where |
D.why |
Ted came for the weekend wearing only some shorts and a T-shirt,___is a stupid thing to do in such weather
A.this |
B.that |
C.what |
D.which |