The museum will open in the spring with an exhibition and a viewing platform __________ visitors can watch the big glasshouses being built.
Sitting in the shade on this hot day ________ good.
Once he makes a promise, he will ______ it.
My mother always tells me not to forget to ________ my umbrella when I leave for work.
A deaf-and- dumb(聋哑)man ________ some nails, so he entered a store, put two fingers together on the counter and made hammering movements with the other hand.
Who can ______ me a ball-pen ________?